This is the original Cosmos location and thank God it was not destroyed during that massive Queen Street fire (it was only two shops away from getting hit). There's a reason they opened a second, larger location as this little nugget is incredibly tiny. Popping up the stairs to the two listening stations can get very cozy when you're sharing the space with another crate-digger.
This shop is mainly for the collectors and DJs out there. Many famous people have rolled through in the past years, including Madlib and MF Doom who were featured on The New Music during their visit. The people who work here are no joke -- they know their records and they know them well. You're not likely to get much of a deal here and if you are looking for some classic funk or soul expect to pay from $40 to $300 dollars for a single record. I have bought many great classic hip-hop 12-inches here though for about $10-15 which is completely fair. They have dollar bins but those records are in there for a reason. On the lower shelves they have some nice albums but usually in poor condition. But if you're not obsessed with near-mint copies this is your chance to get some Al Green and Curtis Mayfield for under 10 bones.
Staff are amazing. They will usually be playing new arrivals on the sound system so you might hear some great tunes in the process. If you get to know the staff well enough (which is not hard for repeat customers) they will throw you some tax-free breaks if you pay cash. Be knowledgable though... Don't drop $100 on a record unless it's worth it because Cosmo's (like most record shops) are notorious for jacking up the price because there's always going to be some young chump willing to drop a bill on a Dilla sample.