I bought this set recently at a very nice discount price (€7,99) at a well known dutch drugstore (Kruidvat). As an AFOL I was triggerd by the nice colorfull pieces for which I have all kinds of alternate ideas.
But before re-using I built the main vignet with the dolfin and the turtle.
That is a fine nice little experience with good part-use and: the way both animals flote above the service is nice!
With the new piece is light blue 67810 in medium azure I guess this is a little set AFOL's will like as much as the kids, for which the 3 builds are nice.

I bought this set for my 5 year-old daughter to challenge him. She was okay for the start, but then got stuck on building on the fish. In the end, I helped her to finish it.

This is the first time, I've bought a 3-in-1 set. I like that there's more than one ay to build it. What could be helpful is to indicate more clearly which version is easier and which one is harder.

What I liked about it:

- 3-in-1 Different ideas / designs.

- Creative set.

What I didn't like about it:

- Fish was complicated. (even for me - maybe I have a hard time visualizing)

- I felt this set was a bit lonely. Maybe good that goes well with the fish tank set.

Overall it was a good bit of fun with my daugher.