I have also now seen her.
As she says she is very selective!
She is great fun, I had a really good laugh with her so the "looking sour" comment is off the mark.
She has a regular full time job and sees very, very few people and, as many of those she sees usually want to repeat, she doesn't need a large client base.
If she is not going to meet you, she will not answer, because (as she told me - I asked) when she has actually responded with 'no' before, two or three guys haven't accepted it and have pestered her with multiple emails asking what they need to do or say to convince her to meet. Thus now, if you don't meet her criteria you are unlikely to get a response. NB This could just be her unavailability.
If you're successful, physically and facially, she looks exactly like her pictures, she's exceptionally personable and boy is she keen!
I'll be making a return visit.