Lovely, Metroidvania Hatsworth. A little on the easier side of things, but not quite "Kirby easy".
Graphics: I really loved the colorful sprite-work and environments. There is a slight improvement over Hatsworth with the art-direction, imho.
Sound: Some of the tracks fall flat, but overall the game has a wonderful collection of tracks inspired by games of yesteryear.
Yay?: I found it very fun, light, and refreshing. Control: B/B+ kind of job. Some of the movements are a little clunky to pull off.
Length: It's a little on the shorter side at under 10 hours.
Reco?: Yes, I recommend playing this is you liked GBA Metroids, post-SOTN Castlevanias, and perhaps most importantly, Henry Hatsworth.
And, to round out the characters needed to complete a review, Drawbacks: not highly replayable :-( and the monster training is a little more shallow than it seems at first.