I've had two and really like them. They're a bit more expensive to maintain than a 1*2 but, overall, I still prefer them. A better blend of practicality and fun in my view at least.
As above, swivel hub bearings are one of the bigger things, along with gearbox syncros. Suspension parts aren't that expensive from the likes of RPD though, and most of it is easy enough to do yourself.
Make sure the suspension is fresh and they're still one of the most fun hot hatches out there.