The stars in my review are based on tasting just one dish of jamón, which was serrano--not jabugo as I ordered. (If you know something about jamón, it's impossible to pass off the inferior product for the sublime jabugo). Yet I was charged as if it were de bellota. Other reviewers have written their take on other dishes.
It's hard not to be tough on an expatriate Spanish restaurant after you've lived in Spain for a good chunk of time (more than a year in my case). If not for my flamenco dancing colleague, I doubt I would have sought out Pepin's. Her flamenco was good and if you go just for that, you should have a good time. I ducked out before the salsa dancing started. (It seems obvious to me that they rely on dances to attract the night crowd and make up for low numbers during the day).