Quiet, central and comfortable
I stayed there for four days in apartment B2 on a business trip. The setting is wonderful as it's a quiet courtyard, yet very central. The flat was well maintained. There were a couple of small maintenance items, which, when raised to the front desk, were immediately attended to. Sometimes I could hear a constant humming noise that would stop only late at night. Depending on your sensitivity this might be of concern, is likely though specific to the two apartments at that level. The staff was extremely helpful and accommodating. It's now on my shortlist of places to stay at while in London.