The guides from my experience are generally good, but incomplete information on where to meet up with group at start prevented me from joining group. Viator’s unwillingness to acknowledge that maybe instructions were not ideal and not willing to return any of the fee was disappointing. Furthermore, the lack of any attempt to call me to help me find starting point, even though they had my phone number was further disappointment. The customer service team I interfaced with should not be in customer service positions - ther were unhelpful and very cursory in analyzing the issue.