Nice, although I think it could've offered more as a demo even if it was a tiny bit of tension towards the end to make the player want to come back and figure out what the heck is going on. But, past that, it was enjoyable overall.
The pros? The art style. I am a sucker for games like this and the image previews were what caught my attention in the first place. Plus, the little shadow details were nice. The actions were also smooth; the jumps were no problem at all and none of the other mechanics gave me issues.
The cons? Nothing that I could see as actual factors in the game because it ran smoothly like I mentioned. Anything I say would be about the demo itself (my biggest gripe is a lack of tension after the first spooks; no 'hook' at the end to make you want to come back and zero hint of an exposition, so it seems totally like 'random guy has a bus break down').
The things I didn't like weren't technical. They were aesthetic. Mostly the wind in the background. It was really distracting and seemed to have a noticeable loop beginning and end. I could finish the demo, but I can't imagine dealing with that sound in my ears for an entire game. Also, the font was hard to read. The light gray and lighter gray text (or white?) was tricky. I recommend a darker text background!
Am I gonna wait for updates? Definitely. Even though I would've liked a smidge of background (in the game itself, not just the game description), I liked it. It was a hint at the look of it, what the controls would be like, and what you can expect.