The course material/presentation gets bit sloppy, particularly the secondary presenter and his slides during week 4 are confusing. And the exercises might ensure that everyone can pass and even might work as reference material for self-study, but it would have been more useful to ask for "ground up, practical implementations", instead of filling in something like five trivial lines of code per assignment. C.f. to the Functional Programming for Scala book, which is a lot more helpful towards understanding some of the concepts being elaborated here. Overall, this course seems to address a too wide audience in too little time.

progfun and reactive programming was better

The course needs a reboot. Some parts were merged with other and the whole thing lacks continuity. A few examples were poorly chosen. For instance, signals / reactive concepts would be easier to understand in user interfaces or graphics / games.

The subject is really interesting, and some of the shown approaches really "close to the edge".

However, there is too much "cut and paste" from other courses. this makes this one difficult to follow. It has lost "coherence". The cross-references don't make any sense, and the assignments fall too short with regard to the content. I think the remake from the original "Functional Programming ___ in Scala" + "Reactive Programming" has not been as successful as it should. This new format within Coursera (everything shorter, more expensive and with less people involved) is not as good as the original one. Maybe this is the only way they can make enough money to sustain the whole... but the "more idealistic" start was far more pleasant.

At times, this course looks a patch work of videos without a clear continuity. It is a pity that one week has no assessment at all and the last week mostly on "Futures" does not assess them. Also it would have been nice to have a snapshot on Actors

Good but not less quality that the other courses in the specialization.

The course seems a little messy and with lack of focus, it is obvious that it is the result of cut and paste of other courses... may be to fit with Coursera restrictions??

Videos from previuos version of the course Reactive programming in Scala makes this course worse prepared. I had impression that it was made rushed from shredded pieces. Assignements are easier than previous

The main difficulty of the task does not apply to the course

Interesting, but a little bit too easy and shallow.

The material was reused from other courses without making it all fit together well.

If you're new to Scala and/or functional programming, then the material covered here will be very valuable.

However, I was fairly disappointed. Much of the coursework was pulled from the original "Functional Programming in Scala" course, as well as the "Principles of Reactive Programming" course. Indeed, there are references to material from those courses that are not actually included here, which must be a little confusing for anyone who hasn't taken those courses. The first two assignments came, respectively, from those two courses also.

There wasn't as much emphasis on architecting a functional program as I might have expected from the title. Instead, the course focused more on using functional principles when implementing computations. The coverage of functional reactive programming (FRP) was very good, but again, I would have expected more of a 30,000ft overview of how to design an application using FRP.

In short, I felt this course to be a little incoherent and disjointed.

While I hold the first course in high regards, this one is often incomprehensible, the new tutor is a lot worse than Martin was, and the topics are also a lot less interesting. Property testing was a new concept to me, I really enjoyed using it, and since I've incorporated it into my own workflow, but events, signals, coming from a javascript background, were just an annoyance.

The topics are great, the material is not really polished: the lectures are from previous courses and they reorganised material without redoing anything, which is needed in several points. Many explanations could be improved greatly.

week 4 course "timely effects" with Erik Meijer videos are very hard o watch, the background and the slides are very distracting. Did not learn much with those videos, I had to resort to other sources to learn about lazy evaluation and futures.

Interesting course. Not sure it really covers functional programming design, it feels more of a brief introduction. The material is clearly a cut & paste from a different (and I guess longer) course. There were references to non-existing weeks, and to subjects that were not part of this course. That felt a bit cheap, considering that courses are not really free anymore. Positive experience, but not exceptional.

The last week has materials that nothing related to assignment, and it jumps a bit fast where i have no clue at all

The course is well structured although it is a bit short. I was expecting to dig deeper into more asynchronous models. A better explanation of Actors would have helped. Also I felt that the exercises were missing the point of the lectures.

The lectures by Erik Meijer felt out of place and poorly connected to the previous content. Similarly, his lectures were tedious to follow. I would have preferred more on-scree time of the slides instead of the shared screen.

The lectures were quite interesting, especially the first two weeks and the ones by Erik Meijer. But overall course seems to be too blatantly put from several other courses which might be interesting to listen separately (e.g. FRP) and the assignment don't seem to cover the material from the lectures too well. Some very interesting concepts seem to be left out of the scope (actors)

The old version was more interesting.

It is a good course. I took it after Functional Programming Principles in Scala. I learned new things....But..... The reason i rate 3 is that:

1) Programminng Assignments doesn't realy correspond to the Lecture material.

2) The Lecture material becomes very complicated in some Lectures because of Lack of Explanation (e.g: Lec 4.3. There are still many disambiguations of how the Prof. creates some models (again lack of explanation)

3) Too many unanswered critical questions remain in the forum!!!

Anyway it's worth your time.

I found this course thanks to Lightbend but I was sad to realice that a lot of content from the previous course has been took down. Actors, RxScala or Akka streams are missing and where in some sort present before.

Learned quite a bit, but course was not as good as the first course of the specialization.

Especially the presentations in week 4 are rather messy.

Very hard to follow due to unsequenced lessons. Had a tough time with the exercise QuickCheck because I was not solving the problem. I have devising test cases to verify the solution. Rest of the content was good, but reactive lesson was quite short to start with.

The lab for the third week was unrelated to the material, and the fourth week is a bunch of videos from the previous course of reactive programming in Scala. Nothing like the first course of Scala

Asigments are too easy to implement

not bad , but very short and not huge plus value compared to first course