I own one. Had a Logitech DFP before. A huge leap ahead.
The G25 is definitely worth the money. My favorite is the leather coated wheel. When you go for a endurance race (180min or something) you'll prefer leather over some rubber coating. Precision is awesome, FFB is fine, pedals are good (which worth mentioning for Logitech). Wheel position is tracked optical and the wheel has ball bearing. That promises a long life time. I have it since its release and no failure until now.
There are some drawbacks though. The wheel is a bit slim. Some people complain about that. The shifter unit feels a bit like a toy (especially when compared to the wheel and pedals).
So, IMHO the bottom line is: The price tag isn't steep at all.