I enjoyed 10 days at Hotel La Louisiane, my only issue was the noise in my room. My room overlooked the busy Rue Seine and Busi and while I enjoyed looking out and people watching, after bed time I had to use headphones to sleep. The worst was morning construction that began after 6 am, or some mornings trash collection. Once I figured this out and was ready with ear protection, I could sleep through it- and never asked for a room transfer as I was enjoying my spacious room and comfy bed. I have never had such a large room in Europe. The reception staff and breakfast crew were very personable and helpful. The breakfast was surprisingly diverse- lots of cheese/ meat options and fresh bread and pastries each morning with fruits, yogurts etc. Shower was hot and strong, no bugs, and really I don't think you can beat the location if you like small back streets full of cafes and easy access to buses, metro and RER. I will stay here again and probably concede that I need a quieter room. I stayed in May and used a fan to keep the air circulating when the windows were closed, I'm not sure how super hot days would be.