I came and spent the first weekend of Jazzfest with Leron and Dennis. There was plenty of parking and the street was well lit. I met Leron outside and he gave me the tour of their spacious and immaculately clean house. I had my own room with a key. That is actually kind of rave when sharing in NOLA because a lot of the houses are shotgun style. So, a big comfortable bed and lots of New Orleans tourist guides waited for me in the room. Bathroom was clean and the shower had nice water pressure which is important to me.
I pretty much went out every day on foot at about 10am and rolled back about 3 or 4 am every day that i was there. At no time did i feel unsafe or anxious about the neighborhood between them and the french Qtr. I would say its about 15 min to get to Frenchmen, which is where you want to be in NOLA at night.
Leron themselves are funny generous guys who will interact with you as much or as little as you need. I spent a few minutes on the porch every day getting to know them. They have a lot of good city knowledge and if you are new to town don't hesitate to use their experience.