It mostly only sold kits, drones, 3D printers, stuff like that. Very little in the way of individual parts and tools. Which always struck me as a bit of a problem -- it more-or-less sold a strict subset of the actual DIY stuff that you could get at competing retailers. So maybe they'd sell someone their very first Arduino starter kit, but it must have been really hard to retain repeat customers. Having bought that Arudino kit and completed all the introductory projects, when the time comes to start getting more creative, you're going to have to go somewhere else to buy, say, an LCD display or a fistful of capacitors. And you'd presumably stay there, since there were so few things you could get at Makershed that you couldn't also get somewhere that sells the other stuff you need.
In short, it was kind of a lot like what Radio Shack had become in the end, only even more so.