I had an identical Lezyne pump already but wanted another one to keep in my locker at the velodrome. I'm using some high pressure tubulars and the pumps at the track don't screw on to the tire stem, having the pump blow off the tire stem is common. The Lezyne screw on system also allows you to release the pump pressure (thus closing the tire valve) before unscrewing it which ensures no loss of tire pressure when removing. The large gauge makes reading the pressure very easy. I chose the pearl color and put my name on the pump in black stencil lettering which makes it easy to identify at distance when someone borrows it.
I really like the action on this pump
The large gauge makes it easy to read from a distance
Easy to use
Still trying to decide how I feel about the screw on attachment