This won't be a very helpful review because the only reason I really came here was specifically for their beer...
A surprisingly good selection of beer that's entirely found inside of a walk-in daaaamn cold fridge (almost freezer) in the back corner of the store. The selection is great, the pricing is fair, and the beer (at least what I got) is fresh. I can't attest to other items in the store being expired like some reviewers are complaining about, other than that my dad got a few things from around the store and they weren't expired. Or, if they were, he didn't get sick or keel over and die from anything he got at Jenifer Street Market.
It's not a true beer store, but if you're in Madison and want beer, stop by. I knock off a star because they're cash only, and they don't have a true singles section for their beers. Bummer.