Few little niggles I've had with mine:
Brake pads seizing in the calipers
Door seals splitting
Door handles becoming loose
Boot lock rattling
Seat bolsters wearing (non recaro)
Mechanically they seem pretty solid though. Mine hasn't had any easy life in the 18 months I've owned it, but its now on 54k and runs just as good, if not better than the day I bought it. Regular oil changes (4000 - 6000miles) to stop the dephaser f**king up, and if you are going to drive it hard, keep an eye on the oil level, mine gets through about a litre every 3000 miles (don't rely on the trip computer, its s**t). Other than that, very good cars, and a lot nicer to live with on a day to day basis that the 1*2's imo.