First of all - yeah, when I first started this game on my Win7 it had a twitchy picture and was virtually unplayable. My solution was to run it in windowed mode (via config file). Not a perfect way, but I've hardly seen any downsides.
Apart from that - don't get it wrong. It is a puzzle-puzzle game. It's short, it has next to nonexistent plot (which at the ending seems not only nearly nonexistent, but unnecessary as well). All in all - guys, it's not Myst, ok? It's a collection of assorted puzzles in a comfy environment. It will be a mistake to see it as anything but.
And so, the cornerstone of the game - puzzles. Puzzles are mostly really good. Some are quite inventive, some do a sort of unexpected play on widely known puzzle (like a famous pipeline puzzle with restricted movements, for instances) But, well, at the same time couple of puzzles are really dumb, while others just require decent amount of mix-and-match, which is not that fun. And of course, it can't be unmentioned - The confederate Cipher wheel WAS NOT used this way. It's a vanilla Caesar cipher in game! Come on, son! The whole point of cipher wheel is to scramble the letter statistics. Why can't you've used the proper codeword instead?! Oh, and a 6 moving pins puzzle is WAY too easy for it's own idea.
That said, other puzzles are fairly decent and inventive, though I've actually managed to solve 2 or 3 of them by semi-random clicking.
So there you have it, it's a compendium of puzzles set in a nicely drawn decor. Some are genuinely good, some are fairly stupid, some are unnecessary hard (that damn broken lock!). So pick it up on a sale cheap, go have your grey matter for a swing for an evening or two, but be cautious whether you'd manage to run it properly on a modern system.