This is a great apartment in the heart of the Marais neighbourhood (4th arrondissement). The metro station (Hotel de Ville) is just down the road, a small supermarket directly across the road, and restaurants, cafes, bistros, shopping galore all around you - the gay district, centered on a block is just 2 streets over.
You can easily walk over to the islands (Notre dame), the Pompidou centre can be scene when strolling close by and the Louvre is only 15-20 minutes walk (or a few metro stops). We thought the location was perfect.
We stayed for 10 nights and loved it.
The pictures are accurate and we had plenty of space for 2 people.
There is a washing machine - much needed for a long stay and highly convenient. The bed is comfortable and there is plenty of air and light.
I don't think it is quite clear - the apartment is on the 5th floor of the building, with no elevator, meaning 95 stairs: this is usual for Paris. However, my partner struggled with the amount of stairs after walking around Paris all day; I found it fine.
As the host is part of a business, this made it super easy for us to communicate with him and organise a time to check-in.
Although this meant the apartment didn't have any personal touches, this was fine for us, however it meant little things like a wooden mat in the bathroom to deal with all the water on the floor from the shower were missing, as noone lived there to experience those things.
We would highly recommend this place for a stay in Paris.