Background - have previously cruised the inside passage in Alaska with Holland America, Caribbean islands with Princess, Crystal was equivalent but a smaller ship (for better and worse)
The food and service were excellent. Especially Verner Petrovic as our waiter in the main dining room. Prego and Silk Road specialty restaurants were very nice. Lido buffet and Trident grill excellent
Free liquor is a mixed blessing, one tends to overdo and not be as energetic for the excursions. One show (Billy joel imitator) was excellent, rest were adequate. Uncrowded but dead nightlife, glad I wasn't a single. Older crowd
Park is huge, hot and VERY hilly so take a taxi
st michaels cave is like luray caverns VA
town is quaint
Crystal didn't offer even maps of Lisbon much less excursions
Lisbon 3 days of sights - see my main review
Belem and Alfama were walkable, take a taxi to a high point then walk down