We just got back from a week's stay at the Marriott Stellaris and construction was very minimal. They were building a lobby bar, but it had no impact whatsoever on our stay. We were also there late last July when hotel was under a major renovation, and the most we heard was some jack hammering, but it was not relentless. We usually spend a majority of our time on the beach, and there was very little or no sound from the construction there. When we were at the pool, it was became somewhat like background noise, and it didn't bother us at all. Also, this visit, we got to stay in the tower that was under renovation last summer, and the rooms are gorgeous. Believe me, I'm a noise phobic, and even under the major construction blitz last summer, I did not have any issues with it.