Let's get the cliche "hope I never have to use it!" out of the way.
I grabbed this for $22 on sale on Backcountry. Value - Ridiculous!
It weighs in at 291g (10.25oz) with the bag, 262g (9.125 oz) without, so the claimed weight is a bit light if you plan on carrying it in the included sack. I have a pocket in my pack, so the sack will stay home. That may be completely irrelevant for most of you.
The PFA system is intuitive and works well - pull it out, throw it out, yank and you're done. The T-grip is sized adequately for glove use without getting in the way. Although it's not easy to get the grip to clip onto the probe shaft, it's also not that important. The first time I used the release, it was sticky. It has since loosened up and works perfectly now.
When fully assembled, there's a tiny bit of play between the shaft segments. It's enough to feel, but I don't think it will result in much deflection during probing.
My only suggestion for improvement: Print the length markers all the way around the shaft. Presently, they cover maybe 1/8 of the circumference and never line up when the probe is pulled together, resulting in the need to twist and search for a measurement. Annoying in snow study, time consuming during a search!