Cabs and Seats - We need your help!

We need your help. I am a member of an Innovation Team for a company that designs and manufactures components for heavy equipment cabs. Our team has been tasked with coming up with new product ideas and improvements that will make machine operators safer, more comfortable and more productive. We would like any and all feedback we can get on cabs, controls, seats, seat suspensions and restraint systems (seat belts). No holds barred - tell us what you think. Feel free to tell us what you don't like.