I booked this tour through a third party and wasn't honestly quite sure what to expect. We were thrilled with the tour and with out pilot, who was super informative and honestly landed better than our commercial flight lol.
The trip is a must-do. It gives you a full understanding of the island, what you might want to do, and is overall breathtaking. We went first thing in the morning, which I recommend. There weren't any clouds and we actually got to fly over the crater, which was so special. Our pilot let us know that's not super common to be able to do that, so wooooo!
All in all, take this trip. You won't regret it.