For sure Gregg is a great host! We stayed at his place for two weeks, bit of a long stretch. But our time at his place was so comforting. His place is pretty much bang in the middle between Mission and Bernal height area, very interesting areas to explore in SFO. We went to few of the food joints he recommended, I will say it loud "Trust this guy". It was a great holiday for us, Its definitely worth it.