If you have an opportunity to visit Hellas, you will find Greeks warm and inviting and lively. The food is excellent, the accomodations clean. Though the pre-arranged tours are worth it, renting a car and touring Hellas is really the way to go. Many people do exactly this each year, so don't be shy or bashful or anxious about driving outside Athens. Athens is quite hectic, but once you're out of the city you'll be surprised. GPS is helpful, though you will discover that the residents you encounter will be helpful if you need to ask for directions. Enjoy.