We tried Joon's tonight hoping for something that would keep up with some of the other great korean cheap-eats in Toronto. Overall, I would give this place another try, but I wouldn't order a Joon special dish again because of the mounting costs in order to get a decent portion.
The Food:
The portions were a little small. We had a double order of the Joon special original spicy chicken along with rice. The food was tasty. The kimchi was very nice. The mashed potatoes were not very good. They don't put out as many side dishes as other places.
The service:
Our server was friendly. The side dishes came out late.
The Price:
There were a lot of hidden costs. You have to pay 2$ for each portion of steamed rice, and if you want a decent portion for the meal we ordered you should add on vegetables, noodles, etc, for 2$ each also. Like a lot of korean places, if you order a "cooking" dish like the one we got, you have to order two portions of the same dish. Unlike other places, you can't mix and match, so they really should just double the prices on that section of the menu and recommend it as a sharing dish since you can;t order a single portion anyway.