She is stretching it by saying beautiful but its subjective of course, i note her 1 hour 2 WG rate is £200. If genuine a good idea with a good rate and i know a couple of punters who prefer punting early morning but like you say many dont start till lunch time.
She also seems to like her Extra's
I can just imagine her sucking yoru cock and it going a bit deeper and she stops and asks for the extra £10 as it's classed s deepthroat, and another £10 for CIM etc
It seems that for some a parlour mentality is starting to creep in with extra's, ok fine for extra if you want to bang her arse, but most other services should be included, otherwise your going to need a fucking spreadsheet to work out the bill