A few quick first thoughts: If it were me, and the comfort/cleanliness of the hotels are comparable, I'd much rather stay at the hotel on St. Charles Ave. than the one on Magazine. Both are within a block or so of the Quarter, but the St. Charles Ave. location is a nicer walk into the Quarter, and there will be more people around for safety's sake if you are walking in the evening. There are wonderful walking tours both of the French Quarter (see Friends of the Cabildo - a non-profit - for well-regarded tours of that area) and also google tours of the Garden District. You might happen to get a lot of rain; we never know. The tours generally run if it's just a mild/moderate rain, so check weather and be prepared. If you are on St. Charles, near Canal Street, you are very near the streetcar line that runs uptown. Suggest taking that all the way out, past Tulane Univ. and Audubon Park for some beautiful homes and live oaks. Get off, maybe where the streetcar makes a hard right turn on Carrolton Ave., grab a bite at a nearby restaurant, and take streetcar back downtown. Some of the Garden District tours meet up at Prytania and Washington Ave., (they will say: "meet at Garden District Bookstore"). You could try to time it to take streetcar and then on your way back downtown get off at St. Charles & Washington and walk one block to Prytania for your tour. You might also save a bunch of time by getting an Uber to your tour if you get off at St. Charles & Carrolton. (The trip back, to get off at Washington, incl. waiting for next streetcar, could easily be 45" or more). Next: Yes, you are probably better off not walking alone at night unless there are a lot of people around. With only 1.5 days, though, you might just want to stick to the French Quarter. Lots to do there; If you like history, the Hermann-Grima House, the Historic New Orleans Collection, and there is a fabulous new exhibition at the Presbytere (part of the Louisiana State Museums, in Jackson Square), on the history and mystery of masking and the Mardi Gras Indians. Do take a look, as you walk through Jackson Square. If you want more specifics around your interests, let us know. (I've lived in NOLA area, now uptown, for 35 years).