I've purchased a total of 4 of these
the one l liked the most was the older model with the hard plastic finger band. I left it at a hotel and had to replace it.
so I purchased the next gen with the soft finger band and it broke after 2 years. I've fixed it with a screw and a new 3d printed finger loop.
if and when it fails, I've purchased 2 more when HeadBlade made them available again. I really don't want to be without a spare or 2.