Therefore seeing an unreviewed provider is always a risky proposition, even for a seasoned hobbyist.

It is strange for a provider who posts often not to have some reviews.  Has she just started out?

In any case, there is a chance she has reviews elsewhere.  You could always contact her, tell her your concerns and see if she does have reviews elsewhere.

You have no reviews, she has no reviews, not a good combination.  Check the other review sites for her.  You might want to contact her and ask if she has asked her clients not write reviews, that is a possibility.  Some girls don't want reviews for security reasons.  

So, now you have to verify her some other way.  You could ask  her for the handles of guys she has seen.  If she refuses this info, my recommendation would be to find someone else.  There are plenty of girls out there so you might have to look around.

Swim