The Tour of the contrast of Switzerland was wonderful. Our tour Guide, Rob Lintott was so helpful and knowledgeable about the area and made everyone feel welcome. Kuddos to Rob! My only frustration was your guidelines for the size of carryon luggage allowed for the train travel. We tried to comply the best we could with the recommended small size carry on. However, no one else seemed to comply. There were all sorts of large carry ons/ backpacks and even roller boards. One guest has quite a large roller board suitcase for her carry on. In the end this was frustrating for us and limited us in our ability to carry what we needed in a reasonable size carry on.