This place is what you would see from HGTV's Tiny House, Big Living. It was built on the land where people typically have their garages, but I was both very excited and impressed with Mimi and Paul's place. It was designed well to begin with but it honestly did not feel small at all. Everything was modern and well kept. While the entrance is behind the alley, there is free parking a block away on Ada St and north of Washington Blvd. That block does not have any "Permit Required" signs anywhere so you should be good to park there (I parked there for three days without any issues). I think the only knock I have on the place is the one vent located in the bathroom. It can get colder than you would like after a period of time downstairs but if you try to close the bathroom vent, it creates a distinct noise that can be heard from upstairs when asleep.
Overall it was a great experience as it is located in a great location to explore all over Chicago; they even have a binder full of recommendations and a welcome bottle of wine!