I have a gaming PC I use a lot and I have a Microsoft Surface Pro. I take my Surface everywhere and use it for everything when I am not at home. I also have an office and at the office I use a dock for my Surface. I use my phone when the job is small enough that I expect to be able to do that work in less time that it would take me to get out my Surface.
I take a lot of notes with the surface, even when working at my desk. I can draw a lot of the problems at work better than I can describe them with words and since getting the surface I have hardly touched my waycom. Being able to see my drawings on the surface while I draw is super useful.