My cheapo hotel (just under 15 Euros a night) occupies a small portion of this building. I stayed at Omega House for two nights. Would have stayed longer if I didn't have to rush back to Leipzig to teach my final two classes.
The walls were thin, so it was a bit loud, but the location was great, staff was nice and it was a fantastic value.
In 1995 in Hanoi, I stayed at a hotel (near Cửa Nam) where the owner's kid decided to practice kicking a soccer ball against the wall right outside my window. He went at it for maybe 20 minutes. At least it wasn't night.