volvo 740? Need quick response please

I am looking at an 89 volvo 150,000 milies, 4cyl. AT. This car is immaculate inside and out. Owner has all service records and car has been very well maintained. I know nothing about Volvos. I need a good car, I have heard these are great cars. Anyone know anything that is a common problem with them or something I should be wary of? Any info would be helpful, thx.