If you want the comfort of a larger room with a little kitchen, the Novotel Suites Hanoi is for you!
The bedroom is very comfortable, clean and modern with an extra large bed.
I tried the gym and it's good enough to allow you to work out while away from home.
The best was the breakfast, with a very large choice of western and Vietnamese dishes, with bacon and eggs but also spring rolls and pho.
The neighbourhood is a bit faraway from the city center, but plenty of options for cafes and restaurants within a few minutes walk.