I though that until a couple of weeks ago when my Mondraker arrived.
I loved the way my old mk1 ID5 rode, always been really impressed with the way it handled but the Dune is a whole different kettle of fish.
The suspesnion is an eye opener compared with the GT, with 30mm more travel but a whole load easier to ride across stuff. Don’t get me wrong, the GT is still a good bike but I’m soo glad I finally bit the bullet & decided to upgrade.
I should say that I swapped most of the components over from the GT so I’m using exactly the same drive train , brakes, stem, bar, dropper, etc (the only things not swapped were the fork & wheels) so I think it’s a pretty fair comparison.