What is not to like with a monster pump? The Double Pump will get you out there in half of the time. The setting switch allows you to easily switch the kite to the 2nd or 3rd setting when you are approaching maximum pressure. Setting 1 pumps both tubes while you pull up and push down. Setting 2 as there be no inflate on the up stroke and double chamber on the down stroke. With Setting 3 you have single action on one tube and on the down stroke only. The small bag of pump hose attachments is awesome. You will never be with out the right pump valve again. Since so many kites have changed their valve set up, this is a nice feature have. The Mega Flex hose can do just that, flex a lot. It is more playable than the plastic hoses too, so it is easier to work with. It can break with misuse and we recommend removing the hose when stored in bag.
The 2.0DD is a big heavy pump. This will not be a great travel pump as it is just big. For the back of your car, it is awesome, but unless you have a private jet, I would not try to pack this pump on a plane. Using the 1st setting with double action takes more effort because you are pumping two pumps at once. Anyone can use it, but there is more friction because you are pumping two pumps.
If you are not packaging a long distance or flying with this pump, you will love it. Get out there and start PUMPING!
