So, I took a two hour test around the corner that had me tasting beer at 10am. (Yes, really.) I quickly needed something on my stomach after this, and Melt was close.
I'm definitely sympathetic to, and really appreciate, Happy Cow being very careful about not including many non-veg*n restaurants.
Melt is a funny in-between: they certainly have a number of vegan substitution options, and claim they can make almost anything vegan, but I would respectfully disagree with the previous reviewer: this place is not "amazingly" vegan friendly.
Of their ten signature baked sandwiches, zero are vegan by default, and only three of them indicate on the menu that vegan substitutions are available. Two of the five wraps indicate vegan options.
They were very friendly, and I'm sure they could substitute on most of the other items, but at the real risk of taking away the flavors the chef intended for the food.
One positive is that both of their cheese substitutes are housemade.
My veggie cheesesteak was reasonably tasty if a little boring, my extra side of the Rubykraut made it more interesting. The Rubykraut is supposedly cabbage and apples; no apples were in sight. It was a small portion in a portion cup for the uptick of $1.50.
My sandwich was sufficiently filling, but certainly not an enormous portion.
The side (brand name) Sun Chips were fine, but it only occured to me after eating a few that I didn't know which flavor of Sun Chips it was, and whether it has dairy.
Frankly, the default side of brand name, out of house chips is pretty weak for an $8.50 sandwich. (Adding one of the house made sides costs an additional $1.50.)
It was slammed when I was there, but I was in just after noon on a beautiful, hot Saturday. Service was friendly. Parking was tough on the street, but easy right around the corner on a side street.
I'm able bodied, but I would second another reviewer's note that handicapped accessibility is tough. The hallway with the bathrooms that goes to the extra seating in the back is also the (very busy) service and food running hallway, and the bathroom access.
Brunch looked interesting, with five out of ten mains indicating a vegan option.
I probably wouldn't go back unless I was in the neighborhood again and hungry. It's just too much dead animal, and not enough expressly vegan options on the menu.
Updated from previous review on Saturday July 18, 2015
Cons: not enough expressly vegan options, fairly expensive for what you get, lots of dead animal flesh