I stayed at the NANA in May of 2008, the rooms are close to everything and the Freelance action is literally at your doorstep!! The hotel is way outdated and needs desperate remodeling, yet it's a popular place. You have to stay there at least once, it was my first Hotel I stayed at in BKK. The Majestic Suites is a nicer hotel and right around the corner!!! Happy Hunting!!
IJ