This is one of my favorite places to go with my husband and with my family. The place specializes in dinner foods. They have lots of grilled cheese, pancakes, scrambles, hashes, hotdogs, and milk shakes. There are lots of vegan options that people can get (note the Medford location has a different menu so there is actually LESS vegan options) You can pretty much get most of the "dinner" foods in a vegan option, with mixed results. There is a tofu scramble, fries, pancakes, and faux cheeses. My favorite is the veganized buffalo wing sandwich. The menu is set up so it is easy to customize things, so staff will be ready to modify things to make an awesome vegan option.
Downsides is mostly there are TONS of kids. This is great for parents, if your kid has a meltdown, no one is going to stare at you. The downside is that it is always noisy, which is partly because the acoustics of the place. The only bad thing that might deter vegans and vegetarians is that I am pretty sure they share the cooking space. I don't care, but I know some vegans get a little irked by this. They might of changed this over the years.
Cons: Loud kids (always), Busy, Shared stove