I prefer the full seat. I have both M100 and M150, and if you keep a look out, you can find the M150 for around $200. It offers the full seat, larger platform, footrest, adjustable platform and adjustable seat. Didn't think I would have seen the value in spending the extra few dollars for those additional features, however, that has now become my go to stand for long sits. The M100 is still very nice and will continue to use them, but the 150 is by far the ultimate hang on stand on the market IMO.