I own a '99 Escort ZX2.

(I bought it 3 years ago used.)
I love the car because it's got tons of features I've always wanted (sunroof, cd changer, rear defrost, auto locks, alarm, etc.) but I have had a few problems with it.
Last year I had a problem with the front headlight sockets that cost $250 to fix (and I had to fix it because a headlight was out).

Right now there's a short in one of my rear turn signals but I'm ignoring that one.
The A/C broke last summer and I had to pay $350 to fix that.
The automatic transmission doesn't seem very smooth to me and I'm worried that it's slipping.
Also, one final thing you should be aware of: the tires! Apparently the ZX2 takes a special size tire that was only used on one other kind of car (Dodge Neon). So when I needed new tires a few months ago the cheapest I could find was $65 and they had to be brought in from somewhere else.
Anyway, I love the car itself but it's already had lots more problems than the other two cars I've ever owned (Ford Festiva and Toyota Tercel).
Hope that helps!