The location is incredible. Right by Kensington Palace, easy walking distance to shopping, parks, museums, and pubs. The unit is small but good for a solo traveler. Nice bathroom and there's a tv with Netflix for relaxing. The building itself is beautiful. Very high ceilings.
I really like the idea of klevio and having an electronic key, but this meant that I was a bit paranoid about my phone dying when I was out exploring. Ideal for anyone with a portable charger or a long lasting battery.
The "kitchenette" was a little disappointing. Be aware that there isn't a fridge in the unit. There's a kettle and a toaster. I had bought some yogurt for breakfast and then realized I had nowhere to store it.