What's not to like about a Hop-On/Hop-Off Bundle tour? We do them often, and this was one of the best. We bought the voucher on-line and redeemed it at the location provided. The process was fast and easy and the directions excellent. BTW, the price was super! The guides were excellent: helpful, friendly, fun, knowledgeable, interesting and easy to understand. The stops were great and well marked. The Tower of the Americas and River Cruise were both top notch as well. We didn't regret purchasing this bundle and enjoyed it all immensely!