Chad's place is one of the most unique spots I've ever stayed! The main floor is gorgeous, and he's obviously put in a lot of time converting it.
Our main gripe was the train noise. The main listing didn't mention this at all, yet it woke us several times every night (especially at 3:50am). I've stayed in a half-dozen other places in NOLA and this has never been an issue.
Also, be warned that the upper floor is quite tight – no windows and low ceiling (watch your head if you're tall). The wraparound balcony is huge, though it's a two-person job to get outside (need to hold open the big window).
Lastly, Chad's recs were amazing, and the beds are also super-comfortable. And you can't beat the location!