Besides regular maintenance, there have only been a few problems. The entire exhaust system was replaced over a number of years, including two mufflers. I don't think it was designed for winter sand/salt on the roads.
It's gone through several CV boots/joints as well.
Also, the radiator needed replacement far too early. Even still, there is a slow leak in the cooling system that nobody seems to be able to find.
There have been some fit & finish issues as well. Bad door and ignition locks that needed replacement, a broken rail on the driver's seat, a not-very-sturdy radio, bad sun visors, etc.
Overall, compared to other vehicles of the same age in this climate, there have been very few problems.
I couldn't imagine driving this car without the turbocharger. The engine is seriously sluggish until the "vacuum cleaner" kicks in. After that, passing is no problem at all.
The funny thing is, you don't suspect its performance by looking at it. "A Tempo with a spoiler".
The small engine means excellent fuel economy, even when the car ages.
Adjustable suspension is nice, but there's still a little too much roll in "Sport".
This car has taken me on several 5000km road trips, cheaply, safely, and happily.
I wouldn't trade it in for any other used car. Within reason, of course. And I think it still has quite a bit of life left in it.