I just got mine a few days ago.
Pros
•new software/firmware enabling it to detect diagonal clicks not just up down left right.
•more big buttons for panic and often used functions.
Cons
•unless you take your shoes off so you can better feel the balance there is no practical place on the thing to park or rest your feet unless you rest your feet off the unit. stretching your legs can result in negligently fired actions.
Conclusion
•Probably will be best utilized for intuitive movement and interact target with target actions.