Good prose and good puzzle design. The puzzles do a good job of hinting towards the solution. If you are experienced with IF, you'll probably find them to be pleasantly easy and not frustrating. If you aren't there's a convenient "hint" website that can give you some tips if you are stuck. There's really only one "puzzle" to speak of in this game, that's pretty much it as far as challenge.
Overall, I have no complaints, but it wasn't particularly engrossing to me. It was short (about an hour) and the subject wasn't particularly interesting to me. Can't really talk about the subject without getting into spoiler territory, all I can say is that this IF didn't leave me "in awe" or anything like that - it just wasn't very memorable. I say that as someone who has never been a fan of short experiences.
You don't really stand to lose anything by playing it though, so go ahead and give it a try at some point.