I previously owned 2011 and 2012 Malibus, but made the switch to the 2013 X2. I love the X2. Great wake, best fit and finish of any boat I have owned, and has a great amount of storage. It doesn't handle as well as the Malibu, but it has a better ride on the water. The bimini is much easier to use. The zero off GPS cruise is now standard and it is rock solid. I love the cruise! The hard side igloo cooler under the seat is sweet. I have the base ZFT0 tower which they say doesn't fold, but it does. you have to loosen the bolts at the bottom of the tower and the whole tower folds backwards. When if folds backwards, you will need 8.5 feet height (single axle trailer).
Just FYI - for 2013, there wasn't just a software update - they completely dropped the medallion system like Malibu and Tige uses and went with the Murphy system like Nautique and Supra has. The murphy system is much better IMO.