I have to admit that I've only recently gotten into these types of games so I bought the "Sinister Bundle" while it was on sale as it was a great value so my review may have some what may seem as petty complaints to more seasoned players.
Anyways, overall this game was entertainingly worthwhile with a few setbacks.
+ standard "girl looking for her parent(s)" fare, nothing groundbreaking but not entirely throwaway either as the fantasy elements and art are vibrant and inviting.
- Pretty much all the creatures/characters are just "there," You find an item for them (or even do nothing at all) and that's the end of them. I wished that some of them got more use, whether appearing later on in the game with another need/puzzle or even just a quick story scene.
+/- I found the ending to come at a reasonable point but it could be viewed as abrupt.
- I played on expert difficulty as I don't like the flashy help and hints, but that was a big mistake and wholly not recommended for 1st playthroughs as many interactive areas are too hidden and not easily recognizable. So unless you want to waste energy clicking everywhere on the screen then I'd recommend at most the 2nd difficulty. I didn't see an option to change it mid-game so I continued on, so a lot of my time was spent going back and forth trying to find the last item of a set needed to progress and tapping like mad (I only resorted to using the in-game guide once towards the end and I was disgusted at how unobvious the spot was).
+/- Some puzzles were a complete pushover while others had more a involved challenge. But as others have said, the rules and need of some of them aren't immediately clear, to which the prospect of figuring out on your own will either excite or frustrate you (you're helper Fey does pop up with a "?" button which I assume will explain things but I never bothered with it).
+ Items found are only needed in areas 1 - 3 areas away so no crazy backtracking.
- I played on a tablet pc, which did work well, but sometimes trying to use an item on the correct area wouldn't register correctly and needed a few extra tries. I'm not sure if the tablet touch had something to do with it or there were very specific spots that needed to be hit but it was annoying.
- Other than a couple of mixing puzzles, there's no manipulation of items. I would've liked to have seen some combining and such things.
+ Promo art and soundtrack and others. Nice set of stuff so I can't complain.
In the end, many of my gripes are pretty minor and personal so it's still easily recommendable. Thumbs up!