Severely flawed.
What happened to the good old days when there were low quality settings in the right click menu? I mean, why take them out? Especially on a game like this, when you have to hit something right on time. By your description, it seemed hard enough, but with lag, it's impossible.
Despite that, from what I could tell, the game seemed okay. It looked good, and the music was pretty cool. The animation at the beginning was smooth, and looked good. Otherwise, because of the no low quality settings, I wasn't able to make it that far into the game--so there isn't that much to tell.