When we were there the other week we never noticed anything. Of course we weren't there 100% of the time, but we did come back during the heat of the day to freshen up and relax, and no one ever came in our room in the hours we were there. When we would come back there were no obvious signs, so they may just peek their head in to check, but no one was going around our room that we could tell. They'll do it even with mousekeeping service though at any resort.