This review covers three trips totaling 19 days, Adriatic/Aegean, November, but the experience was similar on all three trips. These were end-of-season trips, with a large number of new staff joining, before repositioning to South America. The ship holds about 3500 people, with only 5-10% being English-speakers. The English hostess said 25% is normal for high season.
I've only included detail on the items I particularly noticed.
SMOKING AND HEALTH FACILITIES: