I just used this service 3 weeks ago to help buy a 1996 Mitsubishi Galant off a guy at work. I found it very helpful. I found out when it had been maintenanced (once a year), if it had any accidents (no), how many owners it had (3), and a whole bunch of other info that was useful. That being said, bear in mind that it only reports official transactions. If something wasn’t reported (an accident) or done under the table (Uncle Fred doing the oil change), it won’t be there. And, of course, it’s always a good idea to take it on a test drive and have your mechanic give it the once over before you decide.