I'm a big fan of Rikishi. It's a hole in the wall, and so precious.
I went there twice with three friends, and as others have mentioned it should be noted that there is a long wait time for your order. I recommend that you order first before you get settled in with tea. But I promise you that it is worth the wait. I am usually only sad that the wait would be too long for me to order a second round.
It is relatively nice and quiet in there with an old school vibe - no music to distract you from your company. Usually there is only a older man working the front counter quietly, and one or two friendly servers manning the floor.
The first time I ordered the Tonkatsu (Pork Katsu with a bed of rice), beautifully arranged and delicious.
The second time their Chirashi Bowl, which I highly recommend! You will taste no rice like this any where else in Toronto, served on a two-tiered lacquer box and the freshest of ingredients to go with the bed of rice.
English doesn't seem to be that well understood, but one of our servers kindly showed us her tiny Japanese notebook dawned with hand-drawn diagrams when we had a question she could not answer. Amazing in my books!