We contacted Kivotos of Aegean after doing some online research and following the good reviews. We were paired with Despina, who was an excellent trip coordinator. My wife and I took a honeymoon trip to Florence, Rome, Santorini, Mykonos and Athens.
It was the trip of a lifetime for us. The peace of mind having the most difficult parts of the trip planned for us, and having almost 24hr support in case of any minor mishaps made travelling a breeze and very stress free. The choices of hotels and local tour companies were without question of great value and of excellent service.
Highlights? In Florence, the Accademia museum was very memorable, as was our individually planned AirBNB wine tour of the Tuscan country side. It was thrilling to stand among the history in Rome, we planned our own opera experience, and the shopping was great. The sunset catamaran cruise in Santorini was a special, special experience and a day we'll always remember. Actually, Santorini in general was quite exceptional. Mykonos had great restaurants and lots of charm. I loved Athens a lot for its walkability, modern-meets-history feel, and the people. Having Despina be a WhatsApp message away made it easy to check in when there were reasonable delays to our transfers, and she was very helpful every time we checked in. Our tour never felt rushed, and we still managed to find some sleep in and nap time to keep on top of the schedule.
Lowlights? Early on in our planning we requested help to book a wine tour, and some sort of live performance, but that didn't appear to be something the company was willing to dive into, and we were instructed not to overbook our stay. So we booked a few extra things ourselves, which probably worked out for the better anyway. Not being over-the-top party people, we didn't necessarily match the vibe or price of Mykonos, and our tour to Delos was hampered by a poor tour guide (just bad luck, I think). I'm glad we went to Mykonos, but don't need to go there again. I wish the tour vouchers we were given had just a bit more information on who we were looking for when we arrived in some places, but that's just a bit nitpick-y.
Overall, this is a reputable company that delivered on an incredible experience. Was it expensive? Yes. Was it perfect? No, but it was certainly getting close. But that's travel, and for us this trip was everything we wanted and needed it to be. I would recommend this company, and in all earnestness hope you have as incredible an experience as we did!