Coming to this thread a bit late, but I'd rather add to an existing conversation than start a new one.
On the parlour question directly: in most places I've been to when I first started punting (haven't been to a parlour in years), GFE as a listed extra usually just means kissing is on the table, sometimes with a bit more warmth and less clock-watching than the standard service. It's rarely a defined bundle. Best to ask outright what's included before you hand over the £15, because it varies wildly between parlours and between individual providers in the same parlour.
The wider point the thread raises is the one I find more interesting though, because even once you've clarified what's on the menu, "GFE" still means slightly different things to different providers, all offered in good faith. My own version is specific. Tactile, hands-on touching. Real eye contact during oral and during sex, closed eyes during penetrative I can't stand, it turns the whole thing into something performed rather than shared. Proper engaged kissing, not the box-ticking kind. And a sense that both people are actually in the room with each other. Without those, the label doesn't fit for me.
The harder part is gauging that standard across different providers. You can read the profile, read the reviews, ask the right questions up front, and still walk out feeling it wasn't quite what you'd pictured. Not because anyone's mis-sold, but because "GFE" is a personal verdict made after the fact, against a benchmark nobody else can see. Reviews only half help, because the reviewer's baseline isn't yours either.
The regulars I do have are an interesting one. None of them tick every box on my list, there's usually something missing, but they hit the mark in other ways that keep me coming back. And when those things slip, that's when it becomes a problem, because they were the whole reason it worked in the first place.
