My dad made my sewing tables - one for my Bernina and one for my serger and my Quilters Pro. The Bernina and serger have the air lifts (by that I assume you mean the kind that you press down on and they come up....) - they work beautifully. My mom has the electric lifts and I don't like them because they are slooowwwwww. I would save the money and invest in a good ergonomic chair.