We were placed in this hotel last minute from their sister hotel at tower bridge. We booked and paid weeks in advance but they emailed to swap us so late we were already traveling. This meant we were the wrong side of London for what we had planned which incurred additional travelling costs and alot more walking with an 8 year old. The room was very hot, despite complaining about the air conditioning nothing improved. The only thing we could do was leave the balcony door open at night, this was unsafe as other rooms had access to our balcony. When we first arrived they were only expecting 2 adults, so there was no bedding for our son, who then had to stay up late until someone eventually turned up with extra bedding and made his bed. Very disappointing hotel, especially their customer services, not having the decency to contact and warn us we were being transferred to a hotel we had not chosen. We could have saved money by staying at a cheaper hotel, one that appreciates our custom. Not what we expected from a Marriott.