Any airgun regrets?

Hatsan, Notos and AEA HPSS plus. Hatsan can be very good, or it can be hit-and-miss. Nothing wrong with the Notos. Built good and shot good, was actually too small/light to shoot off-hand, or longer distances so I sold it. The AEAs have a bad valve pin that can break easily. I've still got it, but found someone here on AGN that made me one from peek, so it will never break. The AEAs however, shoot VERY well. I'll probably never sell it.