There's a lot of bad press about the Romanians on here. Typical things to look out for are poorly written profiles, profiles that all look the same, no feedback, no phone number / no girl on the end of the phone (just a 'txt me baby' reply). Some of them are (apparently) absolutely stunning though!
I'd had a few punts with EE girls, including probably the fittest woman I'm ever likely to shag in my life - sadly no longer working. One in the bank though, for sure. My general rule of thumb is if they've got feedback with genuine punters (and looking through feedback will usually highlight this), half decent looking pics, and who actually answer the phone, then I'd be tempted. Advice on here is usually pretty sound as well.