We just got off the Horizon. Had an inside, deck 5, toward the back, so I feel qualified to answer your question. Yes, you will both hear and feel noise from the engines. Not all the time, only when coming into port, for about an hour before docking. Must be prop shafts, thrusters, who knows? Also, once or twice in the middle of the night we were awakened by the same noise. I asked later on what it was and was told one engine was shut down at the time we had the vibration/noise. Outside of that, it was a great location. The Horizon was a great ship, but the chairs in the lounges couldn't have been more uncomfortable. Food was to die for. I gained 6 pounds.