How a girl looks doesnt tell me anything about the service I will recieve. so I normally prefer to book ahead, after doing some research on the shop and ladies.
If the photos are there and accurate then great but i much prefer the service quality over the looks (as long as they are not but ugly of course) esp. for ML where i care more about the massage. This is where referals, reviews and AR come in mighty helpful.
If i do just go for a line up or go in blind then i will likely only pay for a shorter session.
Funny you say this. I actually treat looking for electronics/appliances similar to the ladies, do a bit of research to create a short list of brands/models then go to the stores that give me the best deals on the ones that made the list.