I actually had 2x G25's at one point...
The first one i had after about 8 months developed a really slight problem with 5th gear, you actually had to 'put' it into gear, rather than just letting it drop in like the rest of the gears, it wasnt a problem once you knew the problem was there, you could work around it. But one day i emailed Logitech customer support and told them of the problem, it was still within the manufacturers guarantee, so they said they would replace it, bonus! They said they would courier one to me from Germany or Holland or somewhere, where ever the factory was, and it would arrive withing 5 days, and when i received it, i should chop the usb wire from the damaged one and send it back to them in the returns bag that they would send to me... Well you know what they could do with there 'returns' bag lol
Never sent the cable back, never heard another thing, probably invalidated my warranty, but it only had a few months left on it.
Raced in my cellar with 2x racing rigs setup, 2x G25's, 2x accounts on LFS, racing anyone who fancied themselves against me, it was fab!
Wanted a new screen a while back so swapped the original '5th gear' one with a mate for a 5 month old 22" Samsung widescreen lcd (2ms RT) monitor...
Everyones happy!