I know this is old, but I have a thought about these things. I think the ones that pop up on the computer first are all rip-offs. Years ago, I paid for one to check out a horse trainer that I felt wasn't who or what he said he was. The information was useless.
Recently I googled myself. The sites came up with some of my relatives, but named some that I am no relation to. The most disturbing thing is that one made me look like I had a police record, which you could see, when you paid the fee. I have never been arrested in my life.....Not even in the 60's, which is sort of sad.....
Sometimes it is better to go with your instincts. Listen between the lines....