Hi CM, not tried the lady you linked to (i love Thais, but not big ones!), however can highly recommend the following...
Meet Meow (Candy is her UK working name).http://adult.vivastreet.co.uk/escort+exwick-ex4/orchid-asia/83874511
Really sweet girl full of the usual Thai charm, bit chubby, but cute face. Nice massage, nice session overall. Discreet house with parking out front. She's only here for 2 weeks, usually works in London, covering for a friend who is taking a holiday back in Thailand.
Note, her profile says OWO and WS, she said she definitely does not offer those services and was asking her friend to take them off her profile. Pictures are real.