Eh.
The idea of DeSoto Market is cool but the execution is where it falls short. It's similar to other markets i've visited in Seattle and other cities and I see where their inspiration is coming from but its just not doing it for me. The vendor choices are pretty limited and nothing really sticks out as something I'd really want to chow down on and in fact, the food I did have from one of the vendors was not very good at all.
The building and decor is nice, but they could improve by working on some sound dampening as it gets pretty loud when busy. Overall I just feel like its a lackluster experience.
I'd go again, but only if I was meeting someone/it was someone else's idea, this area has way more to offer then DeSoto.