It's really hit and miss. Most times, I end up with whoever is available with no lineup.
Last time I went, I was dropped in a room and promised "a really pretty girl" and was left sitting there forever before Angela showed up.
Not great, not bad. Asian Spa is great for those last-minute urges and the wheel of fortune can be a lot of fun, waiting to see who will show up.
Some days, it works out great.