I haven't bought any hashes, but the free lists that I've used with IP addresses seem pretty accurate... I've been able to find people on FB (esp people with generic names) and other websites with IPs. Of course, it's possible for IPs used to be old or inaccurate (people can move, tracker services CAN be wrong, people use the internet in a different place than where they consider their location to be, other people use proxies/VPNs too, etc.).
So the raw information should be correct... but it's basically as much luck as the rest of the hash list info.