Donburi is a busy Japanese sit-down restaurant serving gyuudon (beef bowl) which is much more exciting than it sounds. There are a whole variety of dishes here, but I would wholeheartedly recommend the gyuudon (eg. the one with the biggest picture!) as that's their specialty and very hard to find it done well.
In the gyuudon, the beef was very light and flavourful, tender and the rice was soft. Mixing the onsen egg into the beef and rice bound everything together. The chicken karaage was also good - the batter was light containing pieces of juicy chicken. Salad was very standard. I got to try a couple bites off of other dishes - the curry sauce was good. Unagi was soft and had no bones. I wish the unagi had more Unagi sauce, especially for the rice.
Service was very good and friendly - they were very busy though. Orders are done by completing and handing in an order sheet, which I guess sort of mimics the vending machine ordering ways of Japan? The menu is pretty extensive and has lots of pictures so it's quite hard to decide what to order. For some reason, they had decided to not play the Leafs game that was on the night I was there, instead playing a game between two other random NHL teams.
They do take credit cards and they also have Vicinity rewards rewarding you with a free meal every 10 points.