Helen’s flat was clean and comfortable. The small balcony would have been excellent to use in warmer and dryer weather. The location was great, close to the tube and lots of things to do.
The tub was very deep and nice, but the shower head was so clogged that showering wasn’t a great experience. The bed wasn’t the most comfortable, but was fine for our needs. We had to meet up with someone to get the key the morning of our reservation, then getting in was easy after that (2 key pads, an elevator, then the key to the flat).