Well, if this were an actual Korean restaurant and not just a food stall, it'd probably get 2.5 stars. However, being just a food stall in a dingy food court, it gets 3.5 stars from me because:
a) They serve fresh, piping hot Korean soup, including the common Gamjatang/PBS (pork bone soup). I find this quite rare for food courts in this area of town.
b) They have like your typical Korean fast food on warmers like glass noodles,spicy fried pork, etc.
c) It probably is one of the better Korean food places within 200m of Yonge/Bloor since there aren't many other options.
d) Everything is under $10 tax in/
Verdict: if you work in the area and are craving PBS or some quick, cheap Korean food, this place is a little gem in Cumberland Terrace.
PS. Terrace is misleading as it is beneath a subway.