I saw this girl last year. After the description, I think that's the same place. Big flat, deco style like a brothel, not clean at all, shower does not work (no hot water in winter). She has a decent body, nice arse, except-her-boobs, extremely saggy as a 60yr lady. Toothy BJ, with very weird black teeth broken everywhere. Her massage skill sucks. Though she has good attitude, lovely personality, do what you ask.
I'd say that explain her price at that moment £80/h (or £90, don't remember). With that price, she deserve a neutral, but up to £120, that's definitely a negative. Maybe she did some boobs enhancement jobs recently and then she raise her price.
I plan to go see her only if she price at £100 including CIM and A+.