I was considering a Subaru but the most commonly found ones here are Rex's with clutches ready to blow, from being absolutely thrashed!
The real worry with Rex's is the reliability of the EJ25 (pretty certain that's the right engine). Some people swear they're perfectly fine, other people have problems with blown head gaskets to completely blown engines. Some people blame it on the stock tune from Subaru, some people blame it on people hopping up the engine and using after market tunes. The stigma is there though, as it's a question that is frequently brought up. My car has the FA20, a completely new engine which can also be found in current WRXs, and so far it's been perfectly fine for me. ::knocks on wood:: Though initially, right out of the gate, there were some very disconcerting engine issues. Hopefully Subaru has got those hammered out by this point.