Look at the track record, then look at the one bad reviewer's other reviews.  Se if you can see a pattern.  The tow of them may not have hit it off also.

With only 1 bad in 8 reviews..that means 87.5% of the time all were happy. That puts it at a B+ in my book.

Proceed on!

Not only should you read the bad reviews, but make sure the good reviews are written by experienced reviewers.

I generally discount a 10/10 review by someone with one or two reviews.  It's most likely fake anyway.

Re:Question About Reviews... :)

Wow, great question!
In such a case, you may wish to read the Juicy Details for all the young lady's Reviews?
That can reveal a lot!
For example, Diana of http://www.ultraGFE.com/diana.htm has a combined (2 different Review Profiles) four 9s (one is mine...), two 8s, and one 6 on Performance?
But when I read the Juicy Details on that 6, it reads like the fellow had a 7- or 8-level session?
So, in that specific case, I am proceeding to see Diana again today, when she arrives back in DC!
Good luck to you with your provider!

dc!