Things I liked:My Diana RWS Model 48 is in .25 caliber and it has exceeded my expectations. It is very accurate and powerful. I shoot both the Beeman 26.2 grain Crow Magnum and H&N 26.23 grain Hollowpoint pellets and I am very satisfied with their accuracy and terminal performance. Both pellets will cleanly dispatch a Groundhog up to 35 yards by employing a head shot. Royally pissed off at a big black Grackle bullying smaller birds and expensive raking sunflower seeds, intended for polite Cardinals, out of the back side of my bird feeder to feed a throng of his black gang members on the ground below, I once shot clean through two .250" layers of plexiglas and 4" of bird seed to kill the rogue black Grackle and stop his looting. I had to replace the plexiglas sides of the bird feeder; however, that damn gang of black Grackles never returned. Things I would have changed:I would like to have more than just one of these fine rifles...atleast one in every caliber available. I'd like to have one with a fancy checkered high grade wood stock and another with a lightweight carbongraphite composite stock to carry squirrel hunting. My .25 caliber Model 48 is kind of heavy...it has a solid piece of timber for a stock that is great for shooting off a benchrest. What others should know:I clean the barrel every 100 shots or so with JB non-embedding cream. It works great just like it does in my centerfire Benchrest and Target rifles...I clean them every 20 shots or so after their barrels are broken in.