Janine and her team were lovely, accessible and helpful. We had a bit of trouble with the WiFi reception upon arriving, but it was effectively sorted out without any disruption.
The location is perfect - close to the tube and bus lines, and in close proximity to great restaurants, parks and sights. There is fantastic heating facilities and fully-equipped space, which made us feel really at home.
Minor concern was the floors and ceilings were paper thin, so we could hear the footsteps from above (and I assume the ones below could hear us too).
Either way, great space and would definitely stay again.