This pump head is the heart of the Clik Valve system, and honestly, for $20 they knocked it out of the park. The fit and finish of the machining is perfect, and the styling is simple and sleek so it complements your existing pump beautifully. Retrofitting my old Bontrager took less than 5 minutes and didn't require any tools or even cutting the hose. The extremely compact head fits easily in between spokes, and the Clik system makes inflation virtually foolproof.
As minor criticisms, I'll note that my pump head did not come with the listed "ball and sports equipment inflators", and though there are some included 8/9mm hose ferrules, the 10mm hose on my pump felt a little sloppy until I 3D-printed a custom one. Might as well include the 10mm so everyone can get the same premium experience no matter what pump they're converting.
The adapter works well. No complaints, I'll have to by the replacement head on my next order.