I don’t have enough space to do as full a review as I would like, so this is highly abridged to fit the space allowed. Word of warning. If you go on a tour with E Noa, do not sit in the front two rows as the huge bulkhead at the front gives no forward view and very limited side view. We made this mistake and feel that the bus design is very poor for a tour that is all about sightseeing. The driver, Reynold, was in my opinion, very unprofessional in his handling of a few situations. He was abrasive to an elderly couple at one pickup point due to a paperwork issue, told everyone that while he didn't mind if we ate or drank on the bus, he was not paid to clean anything up, so if anyone made a mess or left rubbish anywhere, he would pull over and call maintenance to do so. The tour would be halted until this was done. He also told everyone that we needed to be back on the bus on time or even early, so that we would be able to make all our stops, otherwise he would just drive by them and we would have to take pot luck taking pictures out of the window. After our lunch stop at Fumi’s Shrimp (great food btw), my wife and her sister, who were sitting immediately behind Reynold, were having the odd little chat about things they had seen. I could see them talking, but did not hear them and I doubt any of the other passengers could either, but Reynold said to them, "If you two continue to talk, you will have to go to the back of the bus." Apparently their conversation was distracting him from his commentary. He did not like their response and pulled the bus over, opened the door and invited both of them to leave. They opted to not speak anymore for fear they would be ejected from the bus, but now they not only had no view, but were also not allowed to speak. At our final destination, Dole Plantation, my sister-in-law did not want to leave the bus as she felt embarrassed and humiliated. While the rest of the passengers went to have a look around, Reynold told my sister-in-law that he needed the restroom and she had to leave the bus so he could lock it up. If she continued to refuse to leave, he would call the police. Viator, the company we booked with, have since stated that guests may stay on the bus if they wish, but she was intimidated and exited the bus. He then locked up and located my wife and I to discuss the matter and would only take her back to Waikiki when I gave him a guarantee that she would not talk for the next hour or so on the trip back to our hotel. Two groups were dropped at their hotel before ours and neither of them thanked or tipped Reynold on the way out. Needless to say, neither did we. Viator were excellent in handling our complaint about E Noa and have issued us with a refund. I would highly recommend them for booking any other tours.