Dave I have had one for a couple of months now. Yes I would by one again. I like the programmable buttons on the side makes moving around Lightroom and Photoshop easier. You can program each button to do different things in each program you use. This is not limited to just Photoshop or Lightroom. In the setup menu you can choice what button does what in what program for a drop down / pop up window of programs on your computer. Not only can you use the buttons on the side, you can program hand touches on the tablet too use the number of fingers you touch with.
I'm not using WiFi and it's connected to my desktop via USB
As for nub wear, still on my first tip, but not a heavy user yet. I'm not editing hours each day.
It does take up a lot of room on your computer desk, and takes some time to learn how to get around with the pen vers the mouse. I like a quick mouse and using the pen it took sometime getting use to moving my hand move to navigate around the screen. when I do edit I have more control then the mouse, and I can control the flow of what I'm putting down.
After a couple of days the pen will becomes second nature and not feel so alien to you.
He hardest thing for me is using the pen buttons, I don't always hold the pen the same way and have to turn the pen to get to the buttons.
I learned a lot about the tablet by watching Youtube videos on it.
