Very affordable and space efficient. More than one person can use it at one time because of the multiple pairs of dumbbells. Uses gym quality dumbbells, not awkward rectangular shaped objects. Two different style solid steel handles to choose from, ergo or regular. Fast and easy weight changes.
Plates only require about four turns and they're locked on tight.
Allows you to do strip sets faster than any other system. Have a lighter pair set up and ready to go after you rep out the heavy weight. See Compact Barbell Systems.