Spent five days in October in Hanoi and surrounding area and it appears that I am in the minority as I really liked the Vietnamese food there....especially, as noted, various varieties of the local pho (noodle) soup. Actually, I thought the food was one of the highlights of the trip.

I would note that nothing I had was very spicy at all and it'd be my guess that Vietnamese cuisine (at least up north) is much closer to Chinese than Thai or Indian.