I had bought this whip for my track bike because it was a full sized whip and lockring tool. The design is great for the whip, but the wood was too close to the lockring part to properly engage the lockring tool. About a year use with it the wood ended up braking because i had to shave down some of the wood near the lockring piece for me to be able to use this too to its full potential
I’ve had this tool for a few years now and I use it and the awesome Abbey dual crombie tool every time I change a cassette for myself or my wife. Overall it works well whether I’m changing 11 speed Campagnolo road, 10 speed Shimano mountain, or 11 speed SRAM on the cross bike. I did not have the problem the other reviewer had when it came to fitting the tool onto the cassette. The issue I have is with the chain on the chain whip, as it is a 10 speed chain which is thicker than my Campagnolo 11 speed. It still works, you just have to wrap around one of the smaller cogs closer to the lock ring or the chain whip will jam in between the cogs and be difficult to get out. I also busted one of the chain pins about a year ago. It hasn’t affected the use, but next time I replace a chain I will likely save it and replace the 10 speed whip with the old 11 speed chain.
Familiarity: I've used it once or twice and have initial impressions
Construction seems sturdy enough, though I'm a little disappointed that the whip/spanner isn't full tang.
The bigger issue is that the lockring spanner doesn't seem to have been designed with rear hubs in mind. The bevel on the wood handle extends too far up and prevents the hook from going flush with the rear cog to engage the lockring. This was solved easily enough by sawing about a half inch off the handle but I can imagine that most people aren't going to be satisfied to void the warranty on the first use.