The con first: the interior of the seaplane is a bit worn like a working plane. Also the pre-flight explanation though a good overview of your flight is done on a faded map with faded photos.
I was surprised how smooth the take off and landing was, and how the jerks and vibratinos seemed less intimidating with this plane. Ventilation was adequate via flightly open front windows. and the view from the middle of the plane was very good but I can't say about the back row as the windows seemed smaller. Views were occasisonally obstructed by parts of the wing struts?.
I've done more than 10 copter tours over various islands including O'ahu, but this seaplane tour was as fun and I saw and photogdraphed what I had hoped to. I must say that what there is to see is most interesting on Kauai as there are parts of O'ahu or even Maui that are not very interesting. This tour, counter-clockwise as the tours seems to be, is fun from the moment that plane starts its take-off run and viewing the airport and the habor as we climb.
The altititudes were 1500 to 2000 as we were able to listen to ATC clearances around the island. The view of Honolulu and Waikiki are quite breath-taking as you see the density of the area. Diamond Head and beyond reveal residential areas and beautiful coast lines. The tour becomes a little drab as we turned south before Haleiwa.... although the pilot had pointed our military places of interest along the windward side, a flyby of Haleiwa might have been interesting and some explanation. The central valley is a bit of a drag.
The flyby of Pearl Harbor was spectacular. One of my photos has been shared by over 600 people on the Pacific Historic Parks - Arizona Memorial Facebook page. This part of the trip was superior to my two copter tours.
I appreciated the pilot pointed out places of inerest and was accurate not feeling the need to entertain us. I recommend this tour and big thanks to John our pilot.