If you are comparing it to four stacked Sys - I. The access (racktainer) is a little easier due to not having to un-stack. More division / compartment options. One racktainer about 12" tall . Four sys - I about 17" tall. The Sys - I box unit will hold more than one service case in total. But there are individual rack compartments that hold as much as the Sys - boxes. So you can still put the same number of screws in an individual compartment. I like having more sorting options because a wider variety can be sorted in a smaller space. To sort the number of sizes of screws pictured in the post above would probably take two Sys - I box units. Though the total quantity is a little less I can still use a larger compartment for the sizes I need the most.
Seth
