5+++ stars for Private Greece Tours: our family of 4 (including two teens: 15 and 13 years old), did both the evening Cape Sounion tour and spent 5 days on the Classical Tour with George in late June of 2022. I began corresponding with Nikos in March, and all communication was clear, professional and friendly.
We could not have asked for a better driver/guide than George, and having a private driver while in Greece was pure luxury for us. My husband and I have traveled extensively: throughout North America where we live, 4 months of backpacking in Europe, a month each in China, Philippines, Japan, Egypt, Kenya/Tanzania, etc. We generally do everything on our own, or join small group tours when required. This was the first time we've done a private tour, but with teenagers and the difficulty in easily reaching places like Delphi, Olympia and Meteora, we decided a private driver would be worth the cost, and after the experience, I can truly say the value was certainly there.
George is super intelligent and well-read, explained all the sites and related background information with us, and discussed and debated Greek mythology and history with our 13 year old who has a vast interest in the subject. George would give options and suggestions on various routes or additional places to stop at (ocean or mountain route; another monastery or spend more time at a different historical site), and was constantly thinking of extra experiences for us such as making sure we visited mountain towns and had lunch at both the seaside towns and in remote places. He also made sure to book tables for us at restaurants so we could sit and have the best views, and tried to carry our luggage, which was ridiculous as we only had backpacks. George was also patient enough to teach us how to sound out Greek letters (all that math in university helps!). In other words, George took excellent care of us by making sure we had the fullest experience possible while touring his beautiful and amazing country.
We also booked guides through Nikos at Mycenae, Olympia and Delphi. All the guides were good (Zoe at Olympia was excellent), but I don't think the guide at Mycenae was worth the cost, while the guides at Olympia and Delphi certainly were. We booked the hotels as recommended by Nikos and were pleased with all of them. We also booked a return trip to the airport with Nikos, and our driver was everything we could rely on when booking with Nikos - on time, friendly, and professional. We could not have asked for a better vacation in Greece since we used Private Greece Tours, and highly recommend this company.