We stayed here for one night before flying to London. A travel cot was provided for our 12 month old son, and the large bed was very comfortable. We had a view of the city, including from the bath (I wasn't brave enough to leave the blind up though!)
Kitchen facilities were good, although Southgate is just next door so we got takeaway. I would definitely recommend Quay West for families as the location is perfect and the kitchen/washing machine facilities mean you can cater for most child-related emergencies!