A 'real' surplus store in the spirit of the electronics junk stores I used to visit on Canal St. in NYC in the 80s and 90s. Reminiscent of the Silicon Valley electronics junk stores. It also reminded me a lot of the American Science and Surplus stores (used to be JerryCo) in the Chicago area.
Real random assortment of stuff; not too expensive, but not dirt cheap either (I assume rents in Toronto are not cheap).
If you are into electronics or just 'junk', you owe it to yourself to check this place out (as well as the other branch of Active Surplus on Steele in Markham).
It can be hard to find parking here, as in all of downtown Toronto.