I originally had a Honda Accord type R, which I loved, but always wanted an Impreza. I looked at the range, and decided to go for a UK Turbo 2000, as this was the cheapest insurance car. I have noticed that most of this model (UK turbo) tended to have less engine rebuilds.
I've got to say that this car is amazing to drive. I not only bought it due to knowing how quick they are, but for the noise of the flat four and turbo spooling up, but I'll tell ya, it's a dream to drive cruising around town or quickly out on the main road, and the looks you get when people hear the rumble, well everyone knows.
There are a few points to bring up though:-
It likes to eat front tyres.
You've to keep on top of the servicing, I do oil change every 3000mls and spark plugs etc every 7,500mls.
The cabin area, although the seats are comfy and supportive, the rest looks like it was taken out of a wheelie bin with no thought to design.
It drinks fuel heavily as you're probably aware, but I have been able to go long distances at around 80 mph and get good economy. Keep it standard and it'll be OK.
Just to say finally; if you are thinking of getting one, just do it and get it out your system (or not in my instance).