I tried them at the San Rafael Farmers Market on Sunday.
I tried the grapefruit sorbet and the basil gelato. Both were so deeply flavored. With both my eyes opened wide they were so great. These are perhaps the best gelato I've ever tried. So appropriately named ... lush indeed.
I asked if they sold elsewhere and they mentioned they opened a shop on Piedmont about a month ago near the theatre.
I asked for a business card and it seems they also go by another name, Gelato Buenos Aires. The Lush website just has a home page. However, there's a bit more info on their other website
4184 Piedmont Ave, Oakland, CA