I can't comment on Porches, but, as for Maxes: in my experience they don't do bait and switch, but some of the pics can be heavily photoshopped. I posted a review of Lexi: one of my worst punts ever, didn't look anything like her pics. In fairness, it was the most extreme photo shopping I have witnessed at Max.
The quality of girls used to be much higher in the past : Julia, Samantha, Gabriella, they're all. Gone unfortunately.
The agency can sometimes mix up big time (this happened to me with Ashley, wrong address given) and they don't even apologise when they do.
I'm struggling to post links from the phone but if you use search you'll find my reviews on the ladies I mentioned.