This is a very good tour for Grand Canyon and Antelope Canyon. The accommodation is good. As a group, you can enjoy very much. Only thing is, in our tour Hoover Dam was closed, so we couldn't see that. But they didn't take us to Route 66 as alternative. They just showed us Route 66 museum. It will be great if you have alternative in case of such issues.
I definitely recommend this tour! Amazing views of Horseshoe bend and Lower Antelope Canyon. Our tour guide Mark was very nice and responded to all our questions. He was very helpful throughout our journey. One day trip from Las Vegas to Horseshoe bend and Lower Antelope Canyon very convenient and better option.