I stayed 12 days at Edna's place and it was really much better than I expected. Edna is so special, always trying to make you feel like if you were home. She is very kind and the place has plenty of small details that make you feel comfortable.
The location is also perfect, you can get there by subway in different ways, it's very good connected. You can be in Manhattan within 30 minutes.
The Bronx used to be a slightly dangerous place I believe, but now it's different. I never felt insecure, I always saw cops around. It's also very very close to the Yankee Stadium and a free training field next to it, which I especially value because I needed to train for a competition.
In terms of restaurants and markets, there are plenty, even a laundry in the same street.
In summary, I loved the place and specially the host. Enjoyed our talks very much. I highly recommend Edna's place, you won't regret at all.