Hey there:
I was one of the original guys that was in on the Speciality Pistols members buy. We all ordered our Chipmunks together. Mine is a fluted stainless with a walnut stock. Mine has a nice scope and trigger job. This thing will drive nails with even the cheapest rounds you can or could buy at Wally World. (nothing is cheap anymore).
I keep mine out all the time and handy, it's a great varmint gitter, and for the occasional possum or snake in the yard. Sometimes a fat armadillio rooting up the yard. Mine it a 22 L.R. and I love it. For rat and other small stuff at the trash pile, I use the 22 shorts or the Mexican rounds that just use a primer. They hit a little harder than most of the 22 air rifle pistols for rats and you can safely shoot them in this gun, you never have one hang up, like may be possible in a long barrel.
Yes, this gun is certainly worth having and keeping.
Best,
casper