I've passed by this burger joint a number of times before actually going in one day. First impressions are: Once you walked in, it is super narrow, and there is bar- like seating to the right that looks like just about the only seating they have. However when you walk past the washroom there is a dining area that is acceptable.
The menu consists of burgers and the misc items that normally go with burgers like fries, milkshakes, onion rings, poutine etc. They had some gourmet add-on's too like guac, etc. The burgers were a nice thickness, tasted homemade and more authentic then other fast food burger chains. The fries and onion rings were nothing to write home about.
I went with two other people, and we ordered 2 beef burger combos and 1 turkey burger with a milk shake and the bill came to over $60. Fat burger? More like Fat wallet.
I wouldn't come back here again unless someone twisted my arm and said I had to.
Verdict: Save those McD coupons.
You're better off at Five Guys or South Street.