Worth every penny! Friendly, knowledgeable staff and fantastic scenery. Shame we couldn't fly under the Golden Gate the day we took the tour, due to forest fires, still can't fault anything though. Only drawback is that the time went so quick, definitely not long enough!
Highlight of our holiday! I bought this trip for my partners birthday, and they let him sit in the front with the pilot. I was told it was an unforgettable experience. Do it!