This was an amazing experience! First, it was convenient. All we had to do was be at the entrance to our hotel at the designated time. I do recommend double-checking the exact time to be picked up if they don't explicitly tell you the day before just for peace of mind. For us, it was a quick bus ride, but plan for at most 45 minutes each way depending on where your hotel is. Second, we absolutely loved the catamaran itself. The size of the group we were with was perfect; about 10 other people to have good conversations with but not too many where it was too loud/annoying. Everything was perfect: the crew was nice and welcoming, the food was delicious, swimming was fun, and the sunset was amazing! We loved the route our catamaran took, but just note that the route advertised on the website could change depending on the weather/water conditions. That was the only thing that wasn't 100% clear, but even with the change of the route from what was advertised, we still loved it. This was such a unique way to experience Santorini while also being super relaxing! I can't recommend this enough!
