Honestly have no complaints whatsoever! Alex-Ana go over and above to make sure that your stay is comfortable.. we had a couple of minor glitches (not their fault) and they made sure it was resolved ASAP. Also allowed us a late checkout without a problem.
The place itself is super clean and in a convenient location if you want to go around London. The apartment is well stocked. We really enjoyed our stay at their place. Will go again without a doubt!