This is a very nice and spacious suite. Quiet neighborhood and easy walk to Rock Creek Park and Silver Spring Metro (though I did not have to attempt the latter). Karen was very accommodating of my late arrival on the first night (due to a late evening flight that was also delayed). She was able to give me helpful advice on the area and I enjoyed conversing with her when we would cross paths at the house as I came or went (usually as I went).
My only non-Excellent ratings were (if I recall) in Accuracy: this was only because the listing indicated that access was via a Lockbox, but instead required a quick interaction with Karen -- not a problem in any way, but a difference between what I had read and what I had experienced. And in Cleanliness: this is not a negative on the suite itself, which was kept very well; but just a concern that the only sink that I could find was in the bathroom, which made rinsing dishes an awkward task -- again, only a minor inconvenience, and a difficult one to resolve simply. I could have asked whether other options were available, but it did not occur to me when I was speaking with Karen.
There is also a small dog (who is kept away from the guest suite, but is adorable) who will be sure to wake the neighborhood should you return to the suite unusually late. ;-)
All in all I as very happy with both the circumstances of the suite and the interactions with my Hosts. I would certainly apply to stay here again should I return to the area, and would happily recommend to others.