Fresh ingredients, very nice staff, and lots of fun meat alternative options for us vegetarians. Not a lot of assortment - go only if you're craving a burrito. But if that is what you are craving, go to Machismo!
I went to Machismo last night and had a burrito that was the biggest and freshest I've had in the city. I chose a jalepeno cheddar tortilla and chicken with real saffron rice, fresh veggies and salsas they make themselves. The price is good and the staff was young and energetic. A definate stop when in Manayunk.