The only thing I can suggest is to read the positive reviews mate. I find it difficult to make recommendations bevause one man's garbage is another's treasure. For example I was a bit disappointed with the most popular girl on here. From the girls i have seen, Horny Nikki sticks out for enjoying herself.
Others, for example, Cutest Lucy seems to give a very full on service along with the likes of Jade Fox and many others. I havent seen either and don't plan to, simply because booking is difficult. They are very enthusiastic providers and majority of reviews seem like they are enjoying themselves too. I am not a member but you could join UKE where you can interact with the girls directly and definately get a feel of each ladies supposed personality. For e.g. some talk about how much they love giving BJs etc...i'm a cynical fucker so I don't fall for that shit...it's all marketing at the end of the day but wirth joining if you want to chat to them. Link below my post.
I remember someone telling me that if you go into the restaurant business to make the best food, then you will fail. You have to go into it to make money. Some girls may start off looking to enjoy themselves, but once the cash comes rolling in, they will change their outlook.
Another WG who is part time and liked a lot is Classy Jenny...She tours all over M25 and London. Never heard anything bad about her.