My only gripes with the Push atm are;
* Browsing for presets is kinda long. There are no tags and it doesn't remember where you were in a list or what you last used. Should at least be an option (if it isn't already and I just missed it!)
* The buttons don't feel anywhere near as good as on my Mk3
* The pitch strip is kinda useless to me. It's super laggy to engage, and not terribly responsive.
Everything else is great though and I'd happily keep using it until it bit the dust!