During my last visit to Barcelona, I found that some brothels, agencies, etc have the ISO certificate for hygiene, health and quality standards. I've decided to go punting just to the places which hold this certificate, since I am concerned about having* minimum quality standards (after some creepy experiences...)
I already know a couple of places (from Barcelona) called La Vie en Rose and Perla Negra, but I would appreciate any further information about more certified clubs!!