This spot was perfect. You're perfectly located to explore le Marais, or even most of the city/traditional Paris landmarks. You're close to quite a few metro stations. And its on a street thats a little more isolated so you don't get all the hustle and bustle of restaurants and cafes at night.
As for the apartment itself, if you're in Paris to roam and explore, this place is perfect. It's clean and well laid out so that even if its small you don't feel like its small. The ceilings are a little low in the bathroom but that's literally the only downside and its not a big deal unless you're tall (If you're 6'2" and up, maybe this isn't for you). BUT, I'm leaving 5 stars because it was perfect for us. The owners were also very responsive and clear when I messaged them.
All in all, they made our trip easier and better. There's also a little convenience store a few doors down so you can stock up on some essentials like water - very convenient!