When my wife saw this, she said, "Really?", "Joeblow?". I told her we needed to get past that and look at the quality build and ease of use this pump provides. It is easy to use with the dual valve capability, she's a Schrader person, I'm a Presta kinda guy. The multi-tip attached with no problems and stayed put. I just installed new tires/tubes on one of my bikes and this pumped them up from flat to 60psi in like 9 or 10 pumps. In my 50+ years of serious cycling, I've owned a few floor pumps but mostly used hand pumps, so this is a huge upgrade for me. The large gauge is nice, I don't need one that large but I may as my eyes start to fail. After filling the tires, I checked them with two different gauges and they were all within a pound or so. Some of the reviews complained about the plastic base, all I can say is that it is strong and solid. I hope to have another 10-15 years of serious riding ahead of me and I totally expect this to be my last pump purchase. I would buy again but don't think I'll have to.
Replaced a similar product that could not be removed from its holder without loosening bolts (!). Appears to function well, but I have not had to use it in the denouement (flat tubeless). Hope not to use it.
I find that a threaded chuck like this Lezyne product fits more securely and hence pumps more efficiently than clamp on chucks. However, it is sometimes possible to inadvertently remove the valve core (if you use a removable valve core) when unthreading the chuck. This only happens occasionally and is avoidable with some attention, so I find that the superior function of the chuck overcomes this minor nuisance. I have even reversed the chuck to the Schrader fitting to use it to pump up automobile tires, and it is one of the few pumps that can do this successfully. Not an important use case but an example of how well the chuck fits the valve.
I use it for my two bicycles. A touring bike and a road bike. The very easy to see gauge helps pinpoint the tire pressure I like using for each one of the bikes. A large, metal base helps keep the pump sturdy while pumping.