Stayed here a couple of times over the past couple of weeks - indeed it is the cheapest Marriott in London (if you count zone 5 as London...) Both times I've been able to BRG the rate too.

For the price you can't really complain, but the teddy bears appear to have gone, as have the facial masks. Over-hot room with a room thermostat that does nothing. Only one tiddly bin in the bathroom is a bit annoying if you've self-catered at Tesco or Dominoes. There's way too many beards and Macbooks in the reception area, I thought I'd walked into a WeWork office. If you're coming from central London there's a good curry house opposite Hounslow West tube before you get on the bus, "Taaka Tak".

Both times they have failed to post my points/nights without me chasing up with Bonvoy CS, possibly this is revenge for me BRGing them...