Hanoi, capital of Vietnam... whether you like it or not heavily depends on your ability to cope with noise, stress and dirt. Of course the standards are very low compared to europe and the honking is everywhere, since it is normal in Vietnam to honk a) when you overtake somebody and b) when you enter a road turn to "warn" somebody coming from the opposite direction. This can really get on your nerves, but after a couple of days you don't recognize it any more :)
Beer is sold everywhere in the Old Quarter, Hanoi's most interesting part, and if you don't mind 1) sitting on chairs not taller than 25cm, 2) hygiene and 3) some noise from the roads... you can enjoy your beer at 2000 Dong, which is 0,10 EUR. Unfortunately, the nightclub we went to was not very nice, just techno music, 80% guys and unappealing people.
There seems to be one house size in Hanoi, all the same. There is one road where all shops sell shoes: DON'T go there with your girlfriend. The market is quite big and you get a lot of stuff there, especially nice seafood, but since you're supposed to cook it on your own, we couldn't buy anything.
Motos are the most typical thing for Hanoi, I've never seen so many... for 7 mio people, there are 4 mio motos... if you're not planning to commit suicide: don't drive one on your own!