Stayed in this flat with my husband and 3 kids for 6 days. We brought our own travel cot/pack n play for our youngest.
Easy walk to public transport and it took between 25-55 minutes to get to the things we chose to do during this holiday.
Be prepared to replace things like hand soap, toilet tissue, etc. if you stay for more than two days.
At night we would occasionally hear people shouting outside. We could hear the neighbours but it wasn't overly disruptive.
Communication was prompt.
Someone was there to give us the keys to check-in and get them from us at check-out.
Our kids enjoyed the card set about sights to see in London and the kid's book about London.