Local here. The AAMP scene is incredible and if you live in San Mateo or Northern San Jose, you're in for a good time. I think average attractiveness is not as good as I've had in NYC (e.g. PH, AL in NYC), but I'd say more than 50% of the times I try a new girl, I would actually want to fuck her and the top end talent here is as good. Service is about the same too.
The AMP scene has just slowly died over the years. 3+ years ago, you could see pretty attractive women at downtown SF AMPs or others scattered throughout the city (e.g. one that was in the Marina comes to mind). Now I personally don't know of any good FS joints - although admittedly I just stopped looking after I discovered the reliability of the AAMP scene, even if it means I have to plan for 40+ minutes round trip travel time. The one time I bothered with a HJ place it just felt so empty, and paying half the price for a handy from an average-looking 40-something is just stupid compared to having a hot korean girl stick her tongue in your ass, fucking her and then cumming down her throat.
I do wish more people would post here since reviews are a lot more candid (EM is where the info is but you have to wade through tons of fake reviews - some agencies like EBKBeauties are the most guilty imo of shilling on EM).