As others say, this place is an expensive choice, but they always seem busy so I guess they're happy. As a result, I only go here very occasionally. The standard is usually good, so I would go far more if the price wasn't so high.
Of your list I've seen Lucy - one of the older ones, but that suits me. Very good service, and in pretty good shape. Enhanced boobs, but not excessively - they're soft, and I would say well done.
I saw Tiffany quite a long time ago, also a good service. She's been away for a while I think, but seems to be re-appearing in the diary now.
I have heard good reports of Amber from the other girls, but not seen her yet. I plan to at some point.