My wife and I lived at North End for a year (2013). We loved our experience there. The only reason we moved was because we wanted a house.
It's walking distance to Katy Trail, Uptown bars, the AAC and West End. The area is pretty dead when the Stars and Mavs aren't playing.
The only thing that I can complain about is
-Parking (non residents parking in our spots during events at the AAC).
-Pregame concerts at the AAC would shake our unit.
-The ferrel cats in the back parking lot. I called about them multiple times and no one ever did anything.
I really enjoyed going out to the top floor of the back parking lot and checking out the view of the Bank of America building and Reunion Tower.