Remade 5th Ave downtown cart pod gets the thumbs up so far. Lot of visible security at lunch which these days is prob necessary to attract crowds. Moderately busy. Nice amenities. Good selection of carts. Unfortunately I can't recommend Dhaba Indian food, which is basic underseasoned mids, but that's part of cart life - not everything hits, get something else next time.
La Jarochita Mexican cart has been the can't miss move here for 15 years and is still around. Try a huarache