I've been into Cosmo's a few times recently and there seem to be two different women working under the name Catalina. One brunette, one blonde.
This was the blonde one. She's Eastern European (Polish?). Paid £45 for half an hour. She was in an odd mood, having apparently just woken up from a nap before I arrived and still being tired. But honestly, it was quite charming. She had a lot of personality and let it come across.
Once we got down to things, she actually got really into it and gave me one of the most enthusiastic GFE type sessions I've had at the venue. She was more than happy to kiss, for example, which is something I'm really into and it made all the difference for me. It ended up being a really passionate fuck, honestly.
And then, almost as soon as I finished, she stopped and said "OK, now get the fuck out of me". A lot of punters would probably hate that, but it was really funny and just another great example of her personality. It was something of a harsh slap back to reality but at the same time, it somehow made the encounter even more fun.
Looks wise, she's good looking, but I'd also say she's unlikely to ever be the most attractive woman working a shift at Cosmo's. But she's probably worth seeing over more attractive options for her service. She seems to be very good at working to your needs (either that or we just happened to click).