"Work" is a relative term. It depends on what work you are doing. Right tool for the right job.
The target market of Apple iPad Pro + Apple Pencil is the digital creative community; i.e., professional graphic designers, web designers, digital artists, architects ... etc. These are traditionally the core clients of Apple Platform. This solution is really designed for them in mind.
The key differentiators of the Apple's implementation is 1. 3D touch (taptic pressure) sensor on the screen of iPad. 2. Multiple accelerometer sensors in Apple Pencil. The result is an extremely accurate and responsive digital drawing device that responds to pressure, angle, and speed of hand movement. So the experience is as if you are writing or sketching on a piece of paper/canvas. The early feedback from graphic designers is that it is by far the most accurate and responsive system on the market - even better than $3000 Wacom graphics entry system.
Though technically viable, Apple is still not releasing full blown MacOS on its tablet devices, but I think those days are coming soon.