There is no reason not to go to Julio G's. It's right in Old Town, the food is good and the margaritas are cheap (and large). I used to go here on my lunch break and if I was having an especially bad day, I would get a tostada and a margarita. Nothing wrong with that. I've never been when Julio's has been superpacked, so there was never a wait for a table. The servers I've had have all been good- except for one who seemed like he was maybe a bit high, but other than that, all my experiences here have been pleasant.