I visited the Boon Burger location about a year ago and while I liked it, I knew a few things could be improved.
In terms of the interior, it is very similar to the Burlington location, but a tad smaller. Wooden tables and booths, and a very hipster like vibe. The girl at the front counter was also friendly and was willing to walk me through the menu and give me her personal recommendation as well.
What's nice about Boon Burger is that it is 100% vegan and they serve drinks.
I got the Mariachi burger this time and it looks like they've scrapped the square/foccacia bread in favour of a normal burger bun. It definitely tastes better with the bun and is less messy. The burger itself was marked with two peppers, but it wasn't that spicy. More of a mild spicy than anything else. I would have this again, except for the fact it was $15. The patty itself was warm, and the ingredients were cold, so overall the burger had a nice cool feel to it. I liked it. Some people may want piping hot. It's at everyone's discretion.
Would I visit again? Sure, but not too often because of the price point. I think they should just make all their burgers $10 and that would entice more people.