This is an excellent game. Unlike the botched Blade versions it's stripped away all the motion-capture generated players all attempting to look like the famous players and the irritating John Virgo type commentaries and just concentrated on the game itself, which is done perfectly in my opinion.
So all you get is the table in various locations -- no characters just the appearance of the cue, no rests, spiders and the like. Very simple and very well implemented. The ball physics seems perfect and just the briefest of referee scoring makes this an immersive and extremely enjoyable experience.
The mouse controls are very well done, easy and extremely precise which makes it possible to score well and actually win.
There seems to be automatic computer set-up according to your system spec that worried me at first (I like to adjust all the options manually). However there are some basic settings options. The graphics and sound are all excellent and on the highest settings the game with "AA on" runs very smoothly.
If you've got a decent high speed mult-core CPU, lots of RAM and a high-spec graphics card you'll have no issues.
A great game - the best snooker/pool game on the market so far (and I've played most of them going back many years). Great price and easy download. There's an awful lot of play (many many months) in this game so it's not going to get out-of-date very quickly.