So I got my rim yesterday, and I tested it the whole night in IRacing. My first impression is quite good.
Lets start with the QR. It will cost around 99€ (yes it is quite expensive), it is worth if you switch your rims often. I do it a lot, switching between Road and Ovals and the transition is flawless. Plus the QR gives a better ahestetic.
The rim, even with the QR, is so light. The feeling of the FFB is so good because of that. Also because of the weight, the rim is quick to turn left and right.
The big plus is the shape and diameter. The 30 cm make a lot of difference in handaling cars instead of the 26/27 of the F1 rim, and using GT3 it is perfect.
While I don't like it the rubber, the grip is wider then the F1, and it is more comfortable for the hands.
Last positive factor are the shifters, they have good resistences and Quick shift. I think it has the best shifters of all Fanatec rims.
Now the cons, it has some cons. First the materiale. While it looks fantastic (yes it is the McLaren GT3 replica, it has to look amazing) I am not completly sold it of the materials, I would expect more from them. I put it next to the BMW rim and F1 Carbon rim. The quality built from them (especially the BMW) is superior. The double clutch in plastic is pretty meh next to the alluminium shifter.
All in all, it is a great rim, in my opinion is the best rim from Fanatec for cars like GT3, GTE, Porsche Cup and LMP. I like it better then the F1 rim.
I would have pay more for metal clutch and better materials all around, but still a great choice, and I am happy that I bought it from ebay and didn't wait for more then a month for the preorder.