I stayed here one night on business. I would say it is only an average hotel, especially for the price you are paying. Admittedly it would be very handy for the rugby stadium.
The service was not great. Poor English at reception, surly bar staff ithe upstairs bar and it took 30 minutes to get a cup of tea!
The room was clean, large and the bed was comfortable. Bathroom shower good and plenty of toiletteries.
However, there was a function on in the stadium and it was very noisy in my room until late. Unfortunately they were full, so I had to pit up with it, although they did deliver me 1/2 bottle of wine as an apologise, which was a nice gesture
Breakfast was above average buffet
This hotel was ok but I am sure there are friendlier hotels in the area with a lower price tag

Very similar to GuyJersey's experience. This is the fourth year we have stayed at the Marriott for the Harlequins big game over Christmas and the experience has varied. The rooms are clean and spacious and the beds very comfortable but they let themselves down big in the restaurant. As there was a rugby match on, we were restricted to a buffet in the evening and the choice was terrible - fatty chicken and stringy beef casserole amongst other unappetising treats. They didn't replenish the cold meats until you asked them too and when they did it took them about ten minutes and the meat was tasteless. It was if someone had just nipped down to the local convenience store and picked up a packet of 'value' salami. The restaurant wasn't busy (now I know why) but the staff ignored us and didn't take our drinks order or clear away our dishes and were focussed on setting up for breakfast so we had the constant clink of coffee cups and cutlery being placed on tables. When a trolley was wheeled through the middle of the restaurant which made enough noise to wake the dead, I finally complained (and I am not one to complain). Took a while for the duty manager to appear but when she did, she listened to our complaints and apologised. To be fair, I don't think it was the staff's fault, I just don't think they had been trained properly. At breakfast the next day, the restaurant was packed but I could have been staying in a different hotel! The breakfast buffet was superb with everything perfectly cooked and it was arguably one of the best breakfast's I've had in a hotel. The staff were very attentive - what a difference 12 hours makes and, no doubt, a polite complaint. I know it's difficult to cater on a match day but they've done it better in previous years. We'll stay here again next year but will eat out in the evening.

We ate in the restaurant the night before an international rugby match. We didn’t stay at the hotel. This review is about the restaurant.

THE GOOD
Great location in Twickenham Stadium.

THE BAD
There were only 3 tables occupied so they weren’t exactly busy. But the service was really painfully slow and the staff were unfriendly to the point of rudeness. The standard of English was very poor and we had difficulty making ourselves understood. The choice on the menu was very limited and not very impressive. The portions were small and the food was lacklustre and nothing at all special.

THE UGLY
Starters were around £10 and main courses over £20-30. It was very overpriced for what it was. At least 30-50% more than I would normally expect to pay for that standard of food.

THE VERDICT
Service slow and surly, food unimpressive and overpriced. We wouldn’t eat there again.

Let me start by saying the staff is top notch! Numerous staff members went out of their way to help us make the best of our stay. Giving personal recommendations for good eats, shopping, and good conversation. The rooms are clean and highly modern, which made me feel like a jet-setter! The morning breakfast buffet had a traditional English breakfast, which the eggs & sausage were divine! The buffet had everything from oatmeal with all the fixings to thickly sliced bacon and creamy scrambled eggs. There is a bus stop right out front the hotel, which we caught every morning to take us to the train station and then on to the subway. This hotel was about 15-20 mins. away from some great sights in London.