Tony, I used to be able to only work at the bench for about 1 hour and had to stop due to back pain (lack of exercise doesn't help either). With the adjustable height I can work for hours and adjust the height all the time. I bought the mobile option with the base, and while I don't use it much, it makes it easy to move the bench over to other tables I have in the shop to make a very large work surface that I find useful when vacuum veneering. I haven't used the new vice much but summer is almost over (currently 90 degrees here) and time to hit the shop.