As Tex_in_YYC has mentioned the Mucho Burrito in Beacon Hill doesn't suck.
Today we tried the California/Thai place for Pad Thai as suggested by Ariadream and it was really good. Huge portions, we took half home. There are some choices, we had traditional; shrimp for me and chicken for husband. They were nicely spicy.The other choices are California and golden. We overheard a family who came in after us being told that California is less spicy but they were asked how spicy they wanted their pad thai. We weren't asked when we ordered traditional. I assume one could ask for more of a hit.. $21 with drinks for two. Not bad. Very much a fast food atmosphere but I haven't had better pad thai in the fancier places around town. And, on a Saturday, there was no line-up and lots of parking!