I have stayed there in september, had a room on the 3rd floor facing the road.
No noise at all from the road, nana plaza or neighbours.
Nana is just around the corner, it will take you 1 min to get there :D
The aircon worked good, so good, it was too cold sometimes.
The staff is very nice, also in the restaurant.
Some say the staff in the restaurant is not nice, but that is not true.
My stay was perfect and i will stay there in feb again!