I recently purchased this game
(May 2012) for a tenner and at that price you can't go wrong.
Some people seem to be put off by slow loading times, but i think that may be down to the impatience of youth or a lower end PC lol.
If you are used to xbox live and signing in to a profile then Windows for games should come as no shock to you. Infact it is very handy to stay in contact with your xbox friends whilst enjoying playing your PC.
I play with an xbox controller and have no problems controlling the car. The graphics are very good, especially on Ultra settings but the scenery does need some work as it is quite bland. Overall though a very good game for the money if you are not too bothered about waiting for F1 2012.