We bought a used '02 in early '06 with about 50k miles. It is now approaching 85k and we have had few problems. We had an oil leak for 1.5 years that the dealers could not fix, thought it was RMS but started cheap (RMS is $2k) fixed the Camshaft Seal ($300). That didn't fix it Finally an independent shop found it was the turbo return line, not uncommon and a $100 fix. Otherwise, we have had no real problems. The A/C occasionally blows hot air, something also not uncommon. In general, reliable for us, comfortable and fun to drive. However, shop just told us it was very rare to see this car with 7 years and 80k plus miles without a roulette of engine lights. So maybe we got a good one...
Love the turbo acceleration when passing someone. Nice comfort.
Volvo needs to work on reliability and making their cars more mechanic-friendly. 3 mechanics, 2 at Volvo dealers, couldn't find the oil leak. Resale is terrible. We bought at 1/3 of original MSRP at 4 years old, and now in 4 years it has dropped another 50%. My 10yr old Integra was worth more.