As the original poster says opinions vary, not sure all would like this but I did!
I saw a 30 something Thai girl coco aka helana still listed with various agencies (eg http://www.asiangems.co.uk/gallery/coco/107
) about a year ago, lovely body, who I think specialises in bj (spent an hour at it, 2 shoots). A little unusual from my experience (eg put on a vibrating cock ring then later a small vibrating dildo, the latter not usually my territory but was fun at the time). An hour of very very good sucking perched in doggy to my side, me fondling her tits and bum.
Nice girl, didn't talk much, just seems content to suck and DT endlessly. Only downside for me, apart maybe from the thing she put in my bum, was facially I thought she looked very slightly masculine (isn't).
Hope appeals to some!