THIS GAME IS AWESOME but it's not going to change the world and I don't see it as the killer app for the Xbox One. There are already numerous parts that will clearly be improved upon in the sequel (maybe AI tweaking, definitely customization, Titan melee could be a little more inspired - swords?!).
Maps and a steady stream of upgrades will keep me playing, but I already don't want to jump back into the beta to prevent myself from burning out.
Mobility is pretty rad. Jumping up to the roof and taking down Titans is one of my favorite things to do.