Things I liked: Useful accuracy, timeless design, and incredible aftermarket support for those who can't leave well enough alone.
Things I would have changed: I will be changing the barrel, breach, valve, trigger, grips, and finish. However... if asked what actually needs to be changed, or, what I could change that wouldn't knock it squarely out of it's extremely attractive price point... I got nothin'.
What others should know: Although the finish is not as refined as the ancient 130 I'm still shooting, the build quality has not dropped a bit in 50 yrs. A superb value. I bought this one just to enjoy modding, but am now seriously considering getting another specifically to leave intact... and then try to shoot the rifling out before I turn to dust.