The card itself was incredibly useful!
The customer service from the provider was excellent, my only comment in a negative was that the bonus jeep was through direct and they were really horrible about our reservation and the double decker bus tour is no longer operating as a tour but a shopping run
This card was great value for money. I purchased a 3 day card for myself as well as my husband and 2 sons (26 and 23). With this card you received a free activity so in a way you got 4 days for the price of 3. We used the card to hire a car for the day and drove around the whole island - very interesting and good fun; went on a tour of the Polynesian Cultural Centre-HA Breath of Life - very good afternoon/evening; tour of Pearl Harbour - great exhibition/memorial; tour of Dole Plantation; hiked Diamond Head Crater; and Iolani Palace, but there are so many other choices of activities. We were there for 7 days but felt the 3 day card gave us time to do other things, like shopping and relaxing.
The Go Oahu card worked out very well for us. Takes a little planning, but was easy to use and saved us alot of money. Would definitely use again.