It seems like a big premium, but the chuck is the good part, the piece which makes using it less of a pain. I have an HF compressor and several head fittings, and pretty much the HF stuff sucks. The quick connects don't seal securely, or the gauge reads randomly. I have an HF Schraeder inflator, and the pin depressor gets jammed off to the side such that I have to whack while using it to get it to work. I was using an HF blower head, threading a spare Lezyne flex hose into it for easier presta work, but still needed to switch heads when moving between valve types.

Basically, I got the Prestaflator for tbe convenience and hope of better quality bits. Honestly the Prestaflator doesn't seem altogether different in that category, but the gauge seems to work, at least!