The PC version's flaws stop it from being a great game.
Reading the back of the CD box, it does provide a good selection of riders and tracks, though only if you play through the whole game. Each time you complete a race, something is unlocked, meaning you'll have to play through the whole game to get everything (of course, there are always cheats). The designs of the riders and the motorbikes are spot on. There's also an arcade-ish type game as well, called the "Extreme" category, where there are plenty of custom created motorbikes from the developer. For the PC version, there are obviously enhanced graphics and it doesn't require a powerful computer to run it, either.
At the end of each race, a replay is played everytime and you are free to watch it; if you are serious about MotoGP and it's racing, it's great for spotting flaws in your racing, and it is just useful for watching. The ability to save it allows you to watch it later is also a nifty feature.
However, no game is perfect and these flaws are missing features that I feel are quite important to have in the game. In the console version, the gamers have the gamepad, which has the analog stick, which will allow players to control the lean angle of their turn. Unfortunately, the developer decided to abandon gamepad support for the PC version. Followers of MotoGP know that there is a race line, and for that race line to work, there are a variety of angles for turning, and MotoGP does not exactly equate a simple, "turn left, turn right" type of turning. Now me, being slightly obsessive compulsive, I find it difficult to play with just the keyboard's arrow keys. It's impossible to follow the race line because getting the right angle is difficult, and the A.I. for the racers are just unbelievably strange: if you don't follow the race line, they will crash into you as if you were not there.
Other irks I had with this game was how realistic it actually is. Options to fine tune your motorbike is not as great as I thought it was. It's very basic and I wish there were more options for the MotoGP enthusiast. Another irk is when I was racing, I realised that when I breaked hard during a turn, I found that nothing would happen; I would just turn and slow down. Now, in real life, anyone doing that would end up locking their wheels, and they would either be thrown off the bike or lose their turn and straighten back up again.
It seems to have a slight case of "consolitis", where the menu can only be navigated by the keyboard and not the mouse. The ability to customise your motorbike is nice, but using only the keyboard, it's a bit frustrating.
While I do believe this is a good way to introduce yourself into MotoGP, it does have a difficult learning curve. People who are new to MotoGP will have to learn about the race line and how the racing actually works; it's not as simple as going faster and taking over, much like other arcade races out there. Above all, it is an enjoyable game that will keep you hooked for a few days, though I really recommend buying it from the bargain bin.