I have been eating AYCE Korean BBQ at Korean Grill House since all the way back when there was only 1 location in Scarborough. Now there are multiple locations and my fave downtown is this one on Queen Street. It's always busy here and the service is better.
I know many reviews say it's not authentic Korean BBQ, but most of the AYCE sushi places are far from authentic Japanese - I think it is the nature of AYCE. Authentic costs more and some customers just want a lot of food for little money and authenticity doesn't matter.
My personal fave is the marinated beef but my friend who always goes with me loves the Beef/Ox Tongue which now costs extra, where it used to be part of the premium AYCE dinner menu.
The lime soda is just Sprite with a bunch of cut up limes squeezed in but is a refreshing drink to cut the grease from the BBQ meat.
The soup is like dishwater, I never drink it.
I don't think the Kimchee is authentic because I love it here whereas I don't like Kimchee at authentic Korean restaurants and PAT grocery.
For the price, even if you only like one of the meat options it's still a bargain, especially the night owl special price.