Beautiful place, great location. We never got to use the back patio (rained the entire three days), but it was very pretty. The apartment is very well appointed; everything we needed was readily available (including an umbrella, which got a lot of use).
It was super easy to get everywhere using public transportation. Down town in 10 minutes, Wicker Park in about 25. There's a Target within a 10 minute walk and a carry-out within 2 minutes (and the neighborhood feels very safe).
Mary was super easy to communicate with. We didn't see her (didn't need to), but she responded to questions within minutes.
All in all, I'd say this place is an ideal, quiet little oasis in an awesome location.