Stability: Only one problem I experienced. If you click the mouse while in the game (or, as I discovered, to restore it after minimizing it), it changed the window size. You can revert it with right click. This is an odd means of changing window size, and the difference isn't really big enough to be worth it, IMO. That wouldn't be a problem, though, if it weren't for the fact that, for me at least, any time the window changes sizes, things start flickering in an irritating manner, and won't stop until I restart the game. Other than that, no huge bugs.
Content: Five decent sized levels with tons of different enemies. Won't take you super long to beat, but will keep you occupied long enough.
Gameplay: Pretty basic and straight-forward. Ranged and melee attack, limited platforming, different enemies with their own different melee and ranged attacks, as well as a few different move patterns. Mildly challenging at parts, but mostly just time consuming. (Though not painfully so.) Not a lot to it, really.
Aesthetics: Always subjective of course, but I like the simple 2d sprites. The characters are cute and well rendered. The sounds and music are unremarkable- neither bad nor particularly interesting. If your looking for big detailed CGs, this won't interest you. But on the other hand if, like me, you enjoy spritesex, it has lots of that!
XXX: Other than the shota/loli factor, it's mostly vanilla stuff, but lots of it. Vaginal, BJs, handjobs, the usual. The most fetishy thing in it is footplay, which there is quite a bit of. There's some humiliation aspect to the little dialogues that play during sex events, of course. Overall I enjoyed the h-content in this game.
Unfortunately the one downside is the lack of a normal gallery- instead you have a "debug room" in which you can spawn any number of any of the enemies in the game, and then spawn yourself and run around in it like a normal level. Better than nothing, but still a lot less convenient than a simple gallery in which you can play select animations at will. Not to mention you still can run out of health and there's direct way back to the spawn/erase point at the start, so you have to quit back to level select again and re-enter the debug room. It's only a few extra seconds, since fortunately the game doesn't take long at all to load things, but it's still mildly annoying.
Overall: Nice little game, well worth playing if you don't mind shota content.