This location is very convenient for people who use the PATH on a daily basis. It's best to arrive before noon so you can grab a good seat, otherwise it's hard to get a table and it's incredibly loud in here.
The first time I ate here I wasn't impressed - my chicken Souvlaki was notably undercooked and the staff didn't seem too concerned when I pointed that out to them. I get the sense they aren't treated that well - they seem a bit browbeaten and gloomy. Perhaps it's that they work in the basement all day?
Still, this spot is perfect for a bad weather day - no need to go outside or deal with rain or snow. Prices are comparable with what you'd pay at a food court, but the quality is a bit better. "Healthy" choices are less certain, since they don't seem to provide nutritional info for anything, and I'm not sure about the ingredients.