Hi bobj, welcome to Cruise-Chat. Sorry to hear your cruise was not enjoyable. We've sailed on Costa 4 times and loved each one. I can't wait to go back. The toga party, the fantastic entertainment, the cuisine, and the crew have always made our cruises enjoyable. That being said, there are many Americans that loathe Costa. Thank heavens for choice.
Your travel agent should have pointed out that it is a different type of cruising experience. Your travel agent should have shown you where your room was located and explained to you that Europeans enjoy music, dancing, eating, and having a good time.
It sounds like Costa was not a good fit for you, so when booking your next cruise, make sure your travel agent understands what your requirements are, before spending your hard earned money.
We hope you will post on our board and share some good experiences on your cruises. Best wishes!