Ozzy's makes a stellar burger. Other people's photos probably do the burger better justice than I can, but I'll say that they're freshly-ground beef with a loose pack seared on a flat-top. They were served fast and cooked perfectly on our visit. Kinda messy - the brioche bun could've used a little toasting. But this didn't diminish the experience. And the poutine was fantastic as well - potatoes were crisp and other poutine-related slop was plentiful.
I'm not sure the restaurant itself is fully accessible - there's a high step at the entrance, which itself is separated from the sidewalk by a crushed-stone patio.