Aishun's place is great. The location is very convenient because it's basically in the heart of París. I was only there for 2 days and I was able to do a lot of things because everything is very close and it's very well connected by metro.
Take in consideration that there are a lot of stairs but if you're a young traveler, I think you won't mind.
The room is supposed to be shared with another person but fortunately I didn't have to, so everything was awesome. I'd definitely go again.
Thank you Aishun!