I want to get into RnT because it is potentially cheaper for what I want to get but so far prefer FS

1. In RnT I feel like I have to starfish and end up unsatisfied, not know what boundaries I can't cross. In FS I feel like I can do whatever I want. My last RnT session was better though when I discussed upfront what I wanted.
2. Related to 1, awkward having to pay a separate tip. How much should I pay? Am I getting ripped off?
3. Much more info on the girls in the FS places, more reviews and clearer pictures.
4. FS places have better facilities.

Would appreciate some tips from the RnT lovers.