I really enjoyed my stay at Darleen's guest cottage -- it was perfect for my needs (in NOLA for a wedding in the adjacent Garden District, so spent most of my time socializing -- spent few waking hours at cottage, but it was a charming place to return to at night.) Excellent location blocks from Magazine St, which is great for wandering, shopping, & dining. One piece of advice: During my visit, the house had a faint musty smell, which did not bother me in the least -- the place was quite clean. But I kept my suitcase on the floor during my visit, and noticed upon my return that my clothing had the same smell on it -- in contrast, my smaller bag, which I kept on the couch and which also contained clothing, did not smell musty. To reiterate, I am NOT presenting this as a negative or a problem -- one would have to be four inches tall to be bothered by this smell, which presumably results from the house being an outbuilding. I would merely advise visitors not to leave suitcases or contents of suitcases on the floor.
Darleen was very friendly and nice to talk to -- NOLA has many street cats, and we talked about them as her indoor cats tried to paw at the street cats looking in her windows. No cats of any sort entered cottage :)
Also, Darleen has an amazing collection of literature on the shelves of the guest cottage -- every acclaimed title from the past decade at least was present, and many cool older titles, in addition to lots of NOLA info/tourist books. Of course, if you spend much time in NOLA reading even great books, you are probably doing something wrong. But this added to the cottage's charm.
If you stay there, you should check out Mike's bike rentals on Magazine a few blocks away -- I rented bike + helmet + lock for $30/day. If you stick to quiet residential side streets, NOLA is great for biking. I easily biked from Darleen's to French Quarter. Really a great place to stay.