Thanks for this post, I'm inspired. Currently I need to lug all my equipment up the cellar stairs, through the living room out into the yard. Then bring it all back. It adds a lot of non-fun time to my brew day. I plan on clearing some trees and building a shed on the side of our house where the cellar door is and store my equipment there and my ingredients just inside the cellar door. I'll brew in it but it won't be a hangout spot as our pizza oven, fireplace etc. is on the other side of the house.
I think you'll love it, as will your friends.