Absolutely loved my stay here. Check in was very easy - a code to the main door, and a code to the unit itself, after which there are key fobs for entry to the building's door. I thought from the description that the unit had one full and one half bath, but both baths are full (have showers). There was soap, shampoo, and conditioner in the bathroom which was a nice touch - many AirBNBs don't.
The apartment feels very spacious - the ceiling is quite high and there are beautiful frosted windows in the living room that let in a lot of light. (If you want absolute darkness for sleeping, the rear bedroom is best; the main bedroom is enclosed by frosted glass, facing those large frosted glass windows, and even with the blinds down a good bit of light comes in). The open living room and kitchen features lots of seating options - 4 chairs at a table, a leather couch, and a fabric couch.
I didn't hear much noise during my stay - there was a group in the adjacent apartment and I heard their voices occasionally, but there was no street noise or hallway noise.
The location was perfect - I had friends staying nearby and it was an easy walk to see them, and also to walk to the French Quarter / Bourbon Street.
I didn't try the roof deck or the gym, although the listing says they exist.
Communication with Marigny was great - responses to questions in advance were quick, and information about check in and check out were sent in a timely fashion.