We had a horrible experience with the first Viking Ocean cruise ship years ago. Engine failure on their fourth cruise left us in Estonia for four days, less than a week into a 14 day cruise. They couldn’t fix the ship, we were finally given a few hours notice to pack and get off the ship late on a rainy night. Those of us who booked air with them had no power to rebook our flights. Our premium economy seats ended up being middle seats in economy for a 12 hour flight. East Coast passengers ended up on a chartered freight plane. We found out that no insurance company covered the mechanical failure of the ship, that it was the ship’s responsibility to make it right. Viking was horrible to work with, just prorated a refund for our missing ports and we had to fight to get that. Learned a lot from that cruise, everyone lost a lot of money and the stress of it all was horrible.