I have been fortunate to meet some true Hobbyists. Unlike many of the ladies, I have to be honest (about myself only), I am not always 100% in my GFE providing. I've had off days, despite my positive attitude and love of sex. Not often, but it happens to us all, I guess. I don't click with absolutely every man who contacts me, but I do click with most and fortunately, 95% of the time, I'd say I know ahead of time whether he will have a great time with me or not and I will be honest and share my thoughts or concerns before the appt is confirmed.
While I believe it's the best practice for me and has helped maintain my reputation, I know many think they can fake it until they make it to the end of the appointment. As expressive as I am, no way I can do that. LOL.
There's also the point that, it takes more than a one hour appointment to have the best experience.
I do believe in instant chemistry, as it's happened to me often enough.....and I also believe in love at first sight, because that happened to me once.....no regrets.
The best GFE might be from the ladies who "keep it real" and stay true to their own nature and attitudes concerning sex.