I found out about Boon just a couple months ago but, despite living in another city and not one to eat out often, I have been back half a dozen times. I have repeatedly taken friends and family (none of whom are vegan) with me and they have all loved it too.
The food has always been delicious and reasonably priced. On my first visit I actually kept my menu and have been writing down the rating for each dish as I try it. So far every single dish has been either a 4 or 5 except the poutine which earned a 3. I've only had the poutine once though, so I'll have to have it again for a fair rating.
The staff has always been very friendly and answers any questions that we had. I have even had them recommend some other awesome business in the area to check out and learned about a vegan shop in my home town because of them.
I have tried to think of an actual negative to post, but honestly the mediocre poutine I had is the worst thing I've experienced about the place and that could have just been a one-off considering the quality of everything else.
Cons: Not in my hometown