We originally booked an interior but caught a massive price break for balcony guarantee Cat X for only $20 extra. Turned out to be the best $20 I've ever spent. Room 6340 was located on the starboard side hump, and it is category E2. The stateroom was surprisingly roomy, and the balcony was wonderful. This room does have its ups and downs.Location: It is located right by the elevator on Deck 6. In fact, if we leave our cabin door open, you can walk right into our room walking into our hallway. With that, we hear chatters from other cruisers walking by, but that did not really bother us. We also did not hear the parties and parades out in the promenade, so RCI did a pretty good job isolating sounds in our cabin. Because we are right above the out side promenade on deck 4, we did hear the crews working on the lifeboat hoist (which are right below us) with power tools. We heard grinding and banging at 8:00AM during sea day. Not something you want to hear when you want to sleep in. Other than that, the room is at a great location.