Summary: outstanding host, great space (stylish, spacious, comfortable), and good location. I would recommend and would come back.
Stayed here for a weekend visit with my girlfriend. Margaret was an awesome host - quick to communicate, kind and generous. The carriage house is nicely designed, clean, and private enough so you feel like you're on your own. Location is good - walking distance to some bars and restaurants but I'd recommend having a car. Street parking is no problem.
Only one drawback: the bed is not particularly comfortable. Might be because I'm not used to sleeping on box springs but we had a hard time sleeping. Take with a grain of salt. Shouldn't be enough to deter you from Margaret's place.