The G25/27 works fine. Not all buttons work but it works just fine.
I have read at least 5 to maybe 10 threads on this.
Personal experience is a little different.
On my G27, steering wheel buttons. Top left is rear view. Top right is lights (if rally or night race).So, the only real thing missing is 4 buttons and that I can't re-map the buttons I have. A horn would be nice since its an item that is given away as a prize... Thank someones greedy little contract for this one.
Pathetic, if you ask me, that the best wheel out there isn't even fully supported yet I can run down to Wally World and pay $75 bucks US and get re-mapped buttons and even real time modify things like brake bias or TC..at least I could on GT5P with my old DFGT.