The Grand Canyon was phenomenal, and I loved the helicopter tour we did. Our host Randal was a great pilot and knowledgable guide.
Unfortunately I paid for an upgrade and that didn't happen - we were placed on an older helicopter. The upgrade was for the smoother ride and stadium seating, as per the description on their website - our pilot told us the other helicopter in our group was the nicer one with the better amenities that I assumedly paid for. When I enquired about refunding the pricing difference I was told tough luck, and then they stopped responding to emails. This left a bad taste in my mouth.