is uber widely used in hawaii? do they pickup everywhere and do you have to wait long?
Uber is totally available and widely used on the island of Oahu. I have heard stories though that when taking Uber out to the Northshore the prices can get a little higher than normal. You can always check the ride price estimate before hand though. Also sometimes phone service for certain carriers gets spotty on the northern part of the island so calling for an Uber make have a little bit of a wait time.
But overall Uber is definitely one of the most efficient ways to get around the island!!
Uber is everywhere including the airport.
One hot tip would be to double check your location when at your hotel. Due to the silly satelites and your hotel lobbies, it can get a little confused. The APP gives you the ability to alter your location so just use your common sense and move it to a place where the car can easily find you.
Wait time is based on traffic. It usually shows you when you are booking. In Waikiki is can be 1 minute or 20 minutes if in rush hour times (morning and evening).