The flat is small, clean, and a great place to put your head down at night. Being so close to the Eiffel Tower is an amazing experience.
As others have said, the lift and shower are small but very adequate for what you need them for. The bed is a fold out sofa that dips towards the center. My wife and I ended up take the mattress and putting it on the floor instead and slept great!
If you want to be near the Eiffel Tower this is a hard place to beat.