For $750 you've got yourself a real powerhouse. It's compatible with Roland's Zen-core, which means you have access to their latest sounds as well as all the legendary SRX patches and lots of other modelled Roland synths.
I think they made a mistake by not providing USB ports to connect keyboards. But it costs roughly the same price as Ableton Push 2, but you get a complete hardware music production environment that is live and production-ready.
I've started to tire of all the minor performance issues a PC brings (latency, crackles, having to wrestle with live antivirus and background tasks consuming resources, etc) as well as the penalty of using a PC for gigging (it can be complex, there can be random software issues such as unexpected Windows updates, being a little awkward to carry around, etc).
The only shortcoming is that there's no Reason rack & Refills, and I would miss my Korg VSTs as well. But this is close to being a done deal.
Would be uber awesome of Roland bought Reason Studios and made REs and Refills available on these devices. I think that's where electronic music production is headed.