Just got my T-GT yesterday. A bit mixed bag this one. Really good feedback and the rumble motor gives a lot more of the feedback other games have in ffb.
Curbs and traction loss is a lot more obvious. The little rumble on your feat (wheelstand pro) when shifting is a nice touch. Torque is plenty.. Have turned it down to well below 5 for comfort. Most amazing so far is the little effect how steering feels soft and jelly-like when on grass.. Hilariously immersive. Also the extra feedback of wheel going over curb where one can feel when wheel goes over either (and which side) edge of the curb is cool.
Then the mixed. First the rumble motors buzz on smooth surface.. Id rather take some even fake texture on road surface than the numbing high frequency buzz. Just a small adjustment towards roughness would be nice. There is variation to track surface, but id like the smoothest parts to be just a tad rougher.
The only big thing i didnt quite get used to yet, is how intrusive the powerfull ffb is when correcting a slide. Very strong effect similar to G29 with the oversteer help on, but this effect helps correcting the slide even when aids are turned off. Feels like build in slip recovery. Id rather take lightening steering when rear oversteers, rather than ffb helping to countersteer.
Then.. I went and tried the T-GT very shortly in PCars2 on ffb "immersive" and force turned down to 50. E30 and m4 both felt like one wheel was coming of. Crazy wobble effect even while trying to drive straight. And then you go of track, spin or hit a wall and the T-GT actually tries to BRAKE YOUR WRISTS.
I had to literally let go of the wheel few times. This ones going to take alot off tuning for ffb.
Edit: and the brake pedal travel felt a bit excessive without the included mod. Have to try it on tonight.