Anyone ever used Autoappraiser.com for PPI?

[jass]

Hi,
I was wondering if anyone has ever used AutoAppraiser.com for getting a PPI done and what their experience was?
I ask because someone looking to purchase my car is planning to use them to do the PPI on my car.
Just trying to make sure it is a Legit company before I let them at my car. Their website is pretty primitive with no contact info, so sort of odd. Appreciate anyone experience with them either good or bad.
Thanks,
Jeff