In times when fast and reflex-based platformers rule the market like Celeste and Hollow Knight, it's fun to encounter a platformer which lets you lay back a little and simply enjoy the great atmosphere it offers. And this is the main reason I enjoyed this game - atmosphere. Like a children's quality storybook which both kids and adults can enjoy, helping pure-hearted heroes to overcome obstacles and battle classic monsters in a beautiful, classic fantasy setting just gives you these "feel good" vibes.
The game is fun, the puzzles are challenging yet rarely frustrating (unless you intend to collect every gem), and it feels more varied and alive than Trine 1 (which was good as well).
I did run into some technical issues, despite having a very powerful PC (no sound at all and freezing screen upon exit, unless verifying game's files multiple times before each launch), and that's why I give it "only" 4/5. Recommended!