We had a pretty bad stay. Our room was awful to be honest; small, the lamps flickered/buzzed, the bathroom was insanely dated and ugly, there was the smell of cigarette smoke coming through the ancient air conditioning vent in the morning, and there was an incessant loud clanging sound from pipes the other side of the wall ALL NIGHT. We stayed for 2 nights and didn’t realise the noise until bed time as we had been out, and then we were out all day for a wedding the next day and again did not get back until late - otherwise I would have absolutely demanded another room. We had 715 so if you get that when you check in, refuse it!!! Wasn’t overly impressed with how front desk dealt with it this morning when they asked how our stay was. We just explained it was pretty bad in honesty, and they basically said it was a shame and bye! Why ask then? I stayed in a Brussels Marriott last week, an airport Marriott late last year and an NYC Marriott about a year ago. They were all fantastic and were the only reason we felt happy booking this overpriced room for 2 nights. To be in central London a stones throw from some of the most expensive houses in the country and be given this abomination of a room was nothing short of a joke. I’m not a fussy hotel user - a decent bed (the bed here was fine btw) and a clean/quiet space to come back to should be the bare minimum. This was dated, uncomfortable, dark, small, ugly, loud, cramped and it stunk. I absolutely do not recommend this hotel.