So I used this year's burger week as an excuse to finally try this place and I'm really glad I did!
The "KBH" is a real spicey treat and was obviously well made, if only because at no point did the burger threaten to come apart (despite being pleasantly greasy with many ingredients) and the egg didn't leak at all, a rarity.
The fries are very nicely spiced, outdone only by the duck fat fries at WVRST imho.
Unfortunately there is no seating and, aside from the park behind the library at Dundas & Bathurst, there's not much in the way of public seating nearby. As there was a rainstorm at the time my pals and I took up the very tiny bit of counter eating space they have, but felt like a bunch of dicks since that space was clearly needed for people still waiting to be served.
Overall, I think it's an okay place with great food for prices that are also great - considering what you're getting. Outside of burger week you'd be looking at about $20 for a burger, fries and drink. Not a budget joint but, like BQM, totally worth splurging on if you have a little extra cash to throw around.
I'll definitely be back to try one of their regular menu items and apparently they announce secret menu items on their Twitter account? Interesting...