Greg's place was perfect for our stay during the Chicago Marathon. The location can't be beat at a block and a half from the 'L' and great food w/in easy walking distance. Greg is all about communication and was very helpful in meeting my extra pre-race needs by providing bowls, spoons, and a microwave for the breakfast I bring everywhere.
Greg's place is wonderfully old and with a lot of character, including the plumbing, which has a bit of a drip. The beds are nice and firm; great for a bad back, but if you're used to a pillow top mattress it might be a bit of a shock. If you're a light sleeper you may be bothered by the street noise, especially with a tavern not far away.
The location and Greg's hospitality are wonderful. He's kind, communicative, and not intrusive. It really is your space while you're there. Overall, I really enjoyed my stay and would book here again.