If you give me this chair: (Computer chair)
It's comfortable
It's swing-able
It's best
But overall;
It will decrease productivity
It will be uncomfortable, changing position time and again
It will be very uncomfortable in the long run (sitting for hours)
I tend to move a lot because it gives me the power to move it easily
But if you give this chair:
It gives me less movement.
Less comfortable.
It give me less option to move it about, less mobility.
It increases my productivity by not always adjusting my sitting style.
Well, I conclude that sometimes you need and will be happy with something less better. :)
Peace everyone.
