Fantastic apartment. Safe for a single female, I felt very comfortable. Lots of space in the room with a double bed and a single bed on another side through a door - like a little nook. Great location. You’re close to at least 3 RER train stations, surrounded by restaurants, walking distance to Notre-Dame, the Lourve, and great shopping at Les Halle Forum. Highly recommended. It’s three flights of stairs, so not great if you have problem knees or heavy luggage. Otherwise it’s fantastic. Sebastian is a lovely host.