The flat location is fantastic, and worth the cost for this value - central area, short walk to the tube, short walk to Hyde Park & Kensington garden, and lots of restaurants, shops and amenities close by. I recommend making the extra few minutes walk to Dishoom Kensington for fabulous Indian food.
I worked remotely while I stayed in the apartment, and was able to setup on the glass table in the pictures. The internet stayed strong the entire stay.
The pictures of the bed loft are very accurate - you need to be able to climb a ladder, and be comfortable with heights, and not a full height ceiling so be prepared to crouch a bit.
The bathroom is small, but functional. The shower is on the smaller side - I'm 5'4" / 1.62M and felt cramped in the shower.
The living room does not get as much sunlight as shown in the photos, and the hallway area (not pictured) has some wear and tear. Everything is functional, but more wear and tear than expected for the owner's personal flat.