Chose this because cruise on explorer last year was great.
Sadly this was a waste of money and took until day six to sort all issues out.
Aft cabin ( 675) intolerable because of vibration. Bought this specifically for balcony size.
Grim noise and vibration
Tour guide uncommunicative. Paid for small group trip. Ended up with 120 people on a boat trip while tour guide sat on boat and let no-one know what had happened.