There's a Polish girl (or, more accurately, woman) working at Diamonds massage parlour in Bath Road. (No website, like very other place in Bristol.) Not much to look at, and in her forties at a guess, but she hasa pleasant personality and offers a friendly service. Her "stage name" is Natasha. Her English is pretty good, although she does misunderstand what you are saying from time to time. Her accent is very "Russian", so that (for example) she rolls her Rs very heavily. I imagine she either comes from close to the Russian border, or she is lying about her nationality. (I think she's genuinely Polish: she clearly knows a lot about the country. But I could be wrong.)
I haven't posted a full review of her, basically because I've said all there is to say in the previous paragraph.