I have one of the old Viper stands...metal and very heavy. I am 6-6 and 250 and it fits me well, is very comfortableand rock solid so I have put offbuying a new one just for the weight reduction. The new Vipers look just like mine except they are much lighter. I use it strictly for bowhunting and when I get into position I set the top (seat) section slightly closer to the bottom section than I would if I were gun hunting so that the bar does not interfer with the bottom limb of my bow even though I tend to lean out over the bar. Mine did not come with the stirrups; just the boot straps with the small bungee cords to hold your feet in. All the places I hunt don't require a long walk so taking it into the woods is not all that difficult. I will probably continue using it for a while yet.
For me, the foot rest is not all that important because I stand up most of the time anyway.