I've been to the Rude Boy four times now, and every time the burger has been juicy and delicious. It's definitely the best burger on Roncesvalles.
Most recently I was here for burger week, and the 5 dollar special was totally worth it. The only knock I'd have is maybe a bit more slaw. Other than that, I loved every bit of it. Their buns are very soft. The meat they use is fresh. And they make all the toppings in house. I ended up here after an unpleasant experience at Cardinal Rule with some super charred burgers, and my experience at The Rude Boy helped forget that ever happened.
The service I have experienced there has been very good and friendly. Tonight they were also extremely well staffed. They had a few guys cooking, and maybe four to five people serving. They were very timely filling water, and they even gave me a second napkin when I finished off my girlfriends burger (as they had already taken my basket and napkin away).
I'm definitely a fan, and as long as I'm still living in the area they will be my go to place for burgers.