I saw this show with my aunt, who has now passed away. It was really my last memory of just us together, so the show has a special place in my heart.
I really liked it. There were some things I appreciated that the general audience seemed fairly "meh" about (things that take a lot of expertise to achieve but look sort of boring to the average joe). Some things got a little old after a while, but for the most part it was really entertaining. It was kind of embarrassing that the audience kept laughing whenever the horses pooped, and that a lot of people clapped when two horses got into a fight (rearing, biting, kicking). I think the audience thought they cued the horses to do that. A little upsetting, but that's life. The one thing you have to keep in mind is that some things they do are indeed advanced and horses ARE unpredictable. I heard that in one show part of the vaulting had to be skipped entirely because the rider couldn't get it.
"The wise man thinks he knows nothing.
The fool thinks he knows everything."