I have 'expert' difficulty as well, but my game has come from India. Having easily won a race on 'medium', I did round 2 of career mode on hard today. I got to Q3 in the HRT and was 7th on the grid [17th due to a penalty though]. I know there was more pace to be found that could have popped me up a place or two, but I kept invalidating laps for corner cutting, when on a good run.
The game is going mostly well for me, so far. But there are still a few things that bug me. My wheel [Logitech DFP] has an annoying dead zone of about 15 degrees, which I don't suffer with in other games. For some reason, the 'advanced wheel settings' menu is locked so I can't select it. Not sure why though :s I'm sure I could tinker with settings there, if only I could access it.
Secondly, the gear changes are slightly delayed from when I push the flappy paddle. This is a little frustrating as I rev out on occasion because of it.
Finally, the pit-lane procedure is too bare. Having played games like rFactor and Race07, I'm used to completely controlling the car down the pit-lane and pulling into the pit-box myself. It's odd not having to do this.
In conclusion, I find it a thoroughly enjoyable game and one which will award a lot of lifespan. But it doesn't hold a patch on rFactor so far as authentic sim racing experiences go.
---> I did some online racing today. I'm not a fan of the quick sessions. I did two which weren't very enjoyable. Then, I tried to join some proper sessions and the server wouldn't connect for some reason.