The unit is below street level, so if you have heavy luggage or lots of it, you can only carry one item down at a time. The concrete steps are old and so be careful going down.
Clean and modern inside. The kitchen, beds and bathroom seem to be new. Can accommodate 4 people easily. Small bedrooms but that is expected. Beds are comfortable.
The loft bed sits directly underneath a vaulted glass ceiling. There are no blackout shades, so bring an eye mask or be prepared to wake up at dawn. Part of the loft bed under the ceiling, so you can't sleep under it. You are basically sequestered to the middle of the bed and won't have any privacy.
Unit is conveniently located between Gloucester and South Kensington tube stations. Safe neighborhood.