Love this place. Good, diverse vinyl selection with reasonable prices; more often than not, I find Sonic Boom's prices to be lower than other vinyl shops in Toronto. Lots of CDs, t-shirts, mags and even cassette tapes if that is your thing as well.
As for the big checked bag "controversy," I've never personally felt singled out (white male, early 30s) when I've gone in with a bag. I respect that theft may occur and I don't think it's a big deal that customers are asked to check their bags (and that they might have to wait a minute or two to retrieve their bag later on). As for this requisite need for the policy to be applied consistently (oh no, a women with a large bag didn't have to check her bag! The nerve!)... I don't know, that's not necessarily high on my wish list for a record store tbh.