Marty and Rob's place is wonderfully decorated. Modern but not lacking in intimacy. They make their presence known, but don't step on your toes at all; it makes you feel like if you need something they're not too far. Both of them are willing to engage with you, if you'd like to chat about the city or anything at all. The bed is comfortable and supportive (if a little firm, if that's pertinant to you). The shower is pretty spectacular, and there's no shortage of towels at your disposal. The house is only a block from the 22 South bus, which can take you all the way through the city down Clark, or to the Red Line for faster travelling. Lots of little touches. Lastly, their dog is a sweetie, and you should try and make friends with her.
Don't hesitate to book if they are available. The neighborhood is great.