This hotel is an above average airport hotel. But as compared to other Marriotts, this one is below average.

The lobby is small and undistinguished. Check-in was slow. The restaurants were ordinary and the breakfast was just average. Internet access is outrageously expensive. My room was small and showed some heavy wear, especially on the carpet (which was an odd color that didn't quite match the rest of the decor.) Oddly, there was no clock on the bedstand; the only clock was on the television which is little use in the morning to those of us who cannot see across the room without our spectacles. The temperature control seemed to be set on "cool" even when I turned it up, and the fan had only two working options: slow or hurricane. The automatic and off positions did not work. The room decor is otherwise basic.

Having said that, the room was Marriott clean, the bed/pillows were Marriott comfortable, and the maid service was exceptionally quick. (They made up my room while I was having breakfast.)

So as far as airport hotels go, this is better than most for a one night stay. But as far as Marriott's go, I didn't think this was one of their better properties.

I often layover at Heathrow on the way back to the states, and have tried several hotels in the area. This time I relied on tripadvisor's advice, and booked the Marriott. It was by far one of the better spots in Heathrow. The room was up to the usual Marriott standard and the restaurant was quite good. My only compliant was that they served everything with ice (how American!) but this appears to be a new trend in London in general.

Stayed here prior to a longhaul flight to indonesia.

Room was very large and looked into the inner couryard, which was a bit odd - there was some natural light but not a huge amount to allow for privacy. The beds were large and comfortable and the room was nicely decorated.

The staff were very friendly and helpful.

Had an evening meal in the retaurant which was somewhat expensive given that it was pretty basic, but I guess an airport hotels charge a premium for such services.

Would recommend this hotel to others, especially as staying here for one night and being allowed to leave my car here for 2 weeks for free was cheaper than just parking in an airport car park!

My wife and I stayed at Marriott London Heathrow before start our holiday in Malaysia. The room was nice and clean big king size bed --- service was great --- breakfast was great choices --- we stayed only 1 night so we tried Allie's American Grille it was nice and very good service but Tuscany Ristorante (Italian) we looked to the menu it is little bit pricey.

The hotel location was great and close to Heathrow Terminal 3 if you take a taxi will cost around £10 net per way.

Finally, if you looking for hotel by Heathrow Airport this hotel is a great place to stay.