I did lots of research on this before buying one, and have found what most people reported to be true: it's easy to type and be accurate with a mouse at speeds

I did lots of research on this before buying one, and have found what most people reported to be true: it's easy to type and be accurate with a mouse at speeds under 2mph. Mine stops within five seconds, so taking calls etc. is not really a problem either. Plus you can stand motionless on the side rails while it slows down.