I also have a computer chair on wheels that height adjusts. I do get up and down to iron and use the cutting table. Quilting aerobics anyone? :lol:
In one of my early quilting classes the instructor discussed ergonomics. She had us purchase 2 rubber door stops. You slide the low end slightly under the back of each side of your machine and it tips the machine slightly towards you. The machine is still very stable, it is a lot easier to see what you are doing as well as better on your neck, back and arms.