and then research the reviews' histories to see if 7 is what they rate most gals, especially those that regularly get much better looks scores than that.

 
If that is the case, you shouldn't worry; they are just tough scorers.

....you just never know. I have experienced the full spectrum from many excellent reviews, great pics including face pics and had a sub par time to TOFTT and had a sensational time. Literally you just never know.  

IF you trust her photos to be real, current and on the whole they appeal to you then I say go for it. Who cares what other people’s opinions of her looks are. Judge for yourself. On the other hand you are looking to fullfill a fantasy and that is a tall order.

a smart-ass answer, but its actually what I do.  I found that if I go into every appointment by mentally adding 10-15 pounds and 10 years in age to what is claimed in the ad or on the website, I am rarely disappointed.  Sometimes the info was accurate, so I end up pleasantly surprised.  I rarely see girls that have unblurred face pics, so I am almost always surprised in some respects when she answers the door.  Sometimes its good surprise and sometimes not.  

 
However, when you add the expectation and pressure of the fantasy of her looking like a civvie girl you would love to fuck, I just think the odds of this going south increase.  With that said, I sometimes see providers for flimsy reasons, but more times than not, it is not up to my expectation.  

I've learned that when I'm on the fence to trust my intuition. It's rarely been wrong. Then again, I may not have the same high expectations that you do.

Which is, that I'm going to have a great time.  Except for one disappointment over five years ago that could have been partly my fault (a newbie mistake), that's always happened since I started doing research on TER etc.

Did the provider always look exactly as she appeared in her photos, or her face as it looked on my imagination?  No.  But I didn't expect that would be the case.  Whatever the differences were, they didn't get in the way of my having a really good time.  

Well I guess I'll never know

First, thanks for the advice.

I booked a session, but a few days later the agency emailed me and said she had Visa issues and had to leave the country. Now my only problem is $400 burning a hole in my pocket.  

If I like the pictures, I read her reviews. Her lowest appearance rating is without fail the most reliable indicator of appearance. Realistic expectations.