Finally I decided go to the Frenchmen Hotel instead of the backpacker one. I feel worried with the reviews. It's more expensive but I do not want any problems...
It's deceptively simple getting cheap hotel rooms in New Orleans, especially as it gets into the warmer months: just call and ask what the specials are! A lot of the hotels offer special discount packages for short stays, and upgrades in rooms are easy to come by in the offseason.