I discovered Kibo since it was downstairs from my friend's apartment and I absolutely love it!
It's a small restaurant, but the service is super friendly and prompt, the food quality is good, the portions are generous and the price is awesome! It's more of a take-away restaurant, but I had a filling sushi dinner in the core of downtown Toronto for $10 - you can't beat that.
The restaurant is also very tech-savy appealing to app users from Ritual and Foodora.
I definitely would say Kibo is a hidden gem downtown and if you're looking to fill up in the area, I would highly recommend it.