I've heard great stuff about this place for over a year, so it was on my "have to try" list.
I went with a friend today for lunch - extremely slow service for what is basically a hockey rink cantine that just serves burgers with seating for about 25 people or so.
I ordered my burger medium, got well done. It took so long to get it, I wasn't going to ask for another one.
My $8.50 Black & Blue burger (fries are an extra $3) was a small, dry little hockey puck on a gigantic bun that was full of sauce and therefore extremely messy to eat. You only get one napkin, so you'd better bring your own from home - there are no actual waiters or waitresses milling around to ask. The piece of blue cheese on the burger was good, however.
My friend had the same experience with her burger - dry little hockey puck. She said the best part was the piece of feta cheese on hers.
As most of the reviews are very positive about this place, I'm going to guess that I was there on an off day.