Great Review! We are not brand specific but just returned from Alaska 9/13-9/22 on NCl.. 9 days from Seattle. Have done NCL, Princess, Celebrity and Royal all over the Globe. Have 25+ cruises under our belt and yes Seniors. Don't do suites but mostly balcony depending on Itinerary. All lines have benefits..i.e drinks, dinner, gratuities AD NAUSEUM. We generally look for decent reviews on food, entertainment, cabin location and customer service. We have never had a cruise that failed totally in All of those categories. We look for limited encounters with fellow guests and on occasion will have pleasant conversations over a drink or your too close dinner table mates. When we return from a cruise we Always parse the pros and cons of the most recent cruise and by the next week looking to Book another adventure! Happily retired!