The XCortech is a decent chrono but I wouldn't say it's some kind of gold standard or what I'd call a "benchmark".
It's priced decently, has a straightforward UI and doesn't kill batteries, mounts onto a tripod nicely, and reports velocity/RoF/energy in a format convenient for airsoft, so a lot of us use it.
You need to set your expectations though, because you will have annoyances, such as the "TOUT" message that appears 7 shots in a row because you're not perfectly aligned with the input tube or whatever.
That said, it's pretty much the best option for airsoft work, unless you want to spend at least double the price and get a serious ballistic chronograph.
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