You can read forums until your face is blue, at the end the reality is everyone will get slightly different service. Elsa provides bbbj that is for certain, but I am sure that her personal taste, the connection she feels, how often you see her, if you're clean, age, your cock lol everything plays a part in how into it she gets. Or in this case how deep and sensual she gets.
Flip the script, let's say YOU work at a spa and Kim Kardashian walks in says how much for fs, a bbbj and CIM vs. An old fat lady with bad odour (no pun intended).. is your answer going to be the same? If rhey both wrote reviews after the session would they be the same? Lol regardless of how good a girl is, the service will vary depending on YOU, not necessarily her.
I.e I have a very agressive, older and out of shape friend who only goes to spas when hes drunk, high and barely functional. His hygiene sorry to may is always horrible, breath usually stinks.. He never gets the same service as I do from the same girls. Just the way it is, be realistic