We liked the length of this cruise - long enough to make the 13 hour flight worth it and short enough to leave wanting more. We picked this time of year to be in cities before schools are out and while the rivers are a good height. We also liked the size of the ship - somewhere around 180 capacity. We had fewer due to COVID. Since the COVID regulations that were in effect during our cruise have now been deleted, I'm not going to say much about that except that the crew of the Hild did everything in their power to keep us safe and healthy and when guests did get COVID and had to leave the ship the crew were very thoughtful and took care of them. I wish we had booked the pre-cruise extension to the Swiss Alps - everyone on that extension loved it. I also wished we had booked the Versailles excursion in Paris. We thought we would want more free time in Paris but the tours with Viking are such wonderful experiences we know we would have enjoyed it more than our exploring Paris on our own. Viking also made the Charles deGaulle airport in Paris an okay experience. All my past experiences have been exhausting. We booked a suite and I would recommend it especially if one of you doesn't sleep well or gets up early, stays up late, etc. It also comes with laundry service which was awesome!