We recently stayed for 4 nights in a 700baht double bed fan room.
Good points: clean bed and room, clean bathroom, powerful shower, room seemed safe, safe provided, friendly staff, extra toilet roll and clean towels available.
Bad points: our fan circled around on the roof but only really fanned the outside of the room, so it was really hot, but you can upgrade to AC for more money. The Mosquitos outside the room, and inside if the door is open for more than a few seconds, were huge and plentiful.
Happy with the stay overall, only 350baht a night PP, great value