Yes, he buys a 99-00 he can expect a unfixable dash warp problem. Dont buy 95-97 unless if has under 100k, or has over 100k but has had the wiring harness recall done. Secondly V6 have tons of problems way more than I4, go look at the "common problem and complaints" page, most of them say "V6 equipped vehicles only", let see off the top of my head, moosing, TH, you get water pump squeal, if you hit a puddle expect the car to stall, expect the IMRCs to fail several times, it has also more problems. Just MY opinion but the V6 is junk, it is problem ridden. The 4 cylinder is a much better engine, and as you can see from that page no problem relates directly to 4 cylinder engines only. I would also buy one that has rear disc brakes, drum brake e-brake cables are a piece of [censored], my e-brake cant be used currently because of how [censored] it is. It has been like that for quite sometime but I could care less about it.
I would buy a 97 Sport if I could do it over again, but I have a 96 GL and am pretty happy with it. My only complaint currently is how the seats squeak when hitting bumps. My car hanst given me to many problems, most of them are things are usually just fail over time, my radiator failed at 50,000 and cost $510 to get repalced, that kind of ticked me off, because I know people who have over 150k and have the original radiator.