The samsung Note Pro 12.2 is FAR superior to this Ipad Pro, and less money. It's pretty fantastic.
My dad has the Note Pro. I have the 1st gen Note 10.1. The Pro has some nice hardware, great screen. Wacom digitiser. The main reason to get it. But the included pen is dinky and barely usable, you have to shell out for a Wacom or similar quality one. But then you turn it on...
Touchwiz injects Samsung's stylus support, which isn't native to Android, same with the split screen on the Pro. It is a clunky experience which is only supported by a few mostly Samsung apps. The split screen is better than nothing, but it looks Beta.
Worse though is the severe lack of Tablet apps on Android, there is a bevvy of Phablet apps with expandable layout which just look bad; they look bad on a large Phablet, far worse on a Tablet. The idea of one-app-fits-all just doesn't work well. And the apps designed for tablet which I've used tend to be less than stellar.
My interest was in drawing and painting apps, since the iPad had no stylus support. While there was some interesting developments, like Sketchbook and Corel, they aren't great, mostly awful or laggy, and nowhere near Procreate quality. I don't know about notetaking apps, not my interest, for that you would certainly need a 3rd party pen.
Productivity tablet apps worthy of the Pro moniker? Yeah, right. If Microsoft releases Office for Android Tablets (not just generic Phablet), then it might become interesting. For drawing and painting, very disappointing. I haven't touched my Note 10.1 in a long time, my wife has used it to play games when her iPad mini runs flat from constant use, but she doesn't like it. I stick to my iPad 4 which gets similar heavy use. It is night and day.
I would love to give the iPad Pro and Surface 3 a good run with its various graphics and painting apps, neither are in my budget. I have tried the Wacom Companion running Windows, nice machine and hardware, but it was running Windows 7. Yes you can run Photoshop, but Photoshop is not optimised for touch displays. Few Windows apps work well on a touch device, you have to poke around with the stylus or resort to a mouse. Very sub-optimal. For tablets, they really need to totally rethink their apps and rebuild from the ground up to be Touch First, which is exactly what iOS apps are about. Don't know how you'd do that with Photoshop, maybe break it down into smaller apps, which is probably for the best since it has become so bloated. Microsoft is starting to do touch-first apps with Office, and now their new browser; IE sucked badly on Windows 8. Windows 8 was a very shaky start, a botched implementation that finally got rid of Ballmer. We shall see how they go from here on in with renewed leadership.
I see a lot of potential for the iPad Pro, which I don't for any Android tablet, but proof is in the pudding and the app support. If Apple hadn't pulled the plug on Aperture, I could see me editing photos on that thing, it would be perfect. But I guess they made a deal with Adobe; They get the Pro graphics market and stays on iPad, Apple sticks to the Consumer.