My fiance has a non turbo '92 Talon. It's a really, really fun car to drive. It handles great for a FWD...one of those cars that after you spend a few minutes behind the wheel you'd feel comfortable tossing it around a bit. It also has fantastic power delivery and a hell of a lot more get-up than I'd have ever expected from a 135hp N/A engine. The 1-2 shift throws you back in your seat and wheelspin is a very common occurance.
Thus, from having only experienced an N/A Talon, I can only assume that a TSI would be that much more enjoyable.
As far as reliability goes...well...he has a starting problem with this car that he can't figure out. The car doesn't like to crank when it's cold, and othertimes it'll be running fine all day, then he goes to crank it, and it won't start. He's replaced plugs, wires, and had all the starting componets tested.
I think a TSI would be great fun, but it's also great fun to have a car that you know is going to start up for you when you turn the key.
Go to
http://www.dsmtalk.com and do some research. They're good people over there...very helpful.