I stayed at Casa Xolo for 10 days around the 4th of July and it was perfect for my needs! The space is full of lovely art, has a reasonably stocked kitchen and has a wonderful secluded garden space you can work / meditate from. Mercedes checked in on me throughout the trip and made sure I had everything I needed.
As advertised, the location is steps from a major North-South bus line, and about a ~7 minute walk from CTA Metro and a stocked Divvy stand. If it's your first time in Chicago, you might not find the neighborhood as walkable, but if you know your way around, you'll appreciate the promixity to all the food and culture surrounding you on all sides.
I'll definitely try to stay here my next time in town!