Although I did not give the Handlebar Holder Five Stars, I still own two! I use the holders when my bikes are hanging up and ready to ride...keeping the front wheel straight, and when working on the bikes on my maintenance stand.
The reason for only four stars is that the set screw that should lock the bar at length does not always hold the length if the front wheel is bumped firmly...like when removing a bike from the storage stand. This is not a huge issue and not worthy of a whole star deduction, but it is an issue for me. If the set screw knob was a little larger, maybe I count tighten the set screw tighter. But that might also damage the rod or strip the screw.
Again, I like the Handlebar Holder enough to own two, the first being very old and the second just a couple months new. The holder is very easy to use, lightweight, sturdy, and affordable.
You know how frustrating it is when you have your bike in the bike stand, working on say adjusting disc brake calipers, and the front end of your bike is flopping around like your drunken college friend? This gadget removes the frustration factor. And it works on all my bike with easy length adjustment and the elastic rubber strap faster.
I hesitated getting another non mission critical tool but I'm glad I added this one to the tool box. Regarding durability.... The only thing I'm concerned about is the rubber strap at both ends of the holder. It may get hard and becomes brittle over time but that may take many years if you don't leave it out in the sun so it's all good.