Cartridge inflation is useful when you need save space, weight, and time. I keep a fresh tube and inflator system ready to go on my road bike that has scarce room for a pump. Otherwise, this is a commodity product that does what it's supposed to do.
Have everything ready before puncturing the cylinder. I usually bring a back up cylinder. One time use but the top is reusable. A must have if you don't have a mini pump.
Model was recommended to me as replacement by customer service rep because the flexible air hose is much gentler on presta valve stems than conventional compact frame pumps. - STILL very reliable either to top-off air pressure or repair flat on the road.