Super convenient - on top of a subway and at the foot of the apartment complex.
The fruit isn't very fresh and is definitely overpriced; their meat is especially overpriced as well. I've been there at the very end of closing time, and I get the feeling that a lot of the foods that are pre-made sit in the display boxes or in the shelves until they're sold - who knows how long that is.
I'm a big fan of their daily dinner specials on the weekdays - they have take and bake pizza on Thursdays, and rotisserie chicken on Wednesdays, or something like that, for $7.99 which is quite a deal.
Convienient when I need something quick, but I would definitely not rely on Longos as my main source of groceries.