If you travel in budget you can come here. The staff is smily, nice and helpfull.
The breakfast is simple but good.
The rooms are simple but the bed is the best I had, so good for your back after a long day walking around Hanoi. The bathroom is small but enough for few days. And it's clean.
The location is great ! In the old city center, many street food very cheap and good. The best to go shopping and to have some cultural visit.
You can come here and I'm sure that if you have any issue with your room just ask to the staff and they will fix it for a good trip.