I can't decide between two things I have that I can't live without. My Lyman Power Case Trimmer and or my Redding powder measure.
I used a Forster case trimmer for many years. I used it so much that the aluminum handle grip part was so worn that it would pinch my finger and draw blood if I wasn't very carful. So I had to replace it. I bought the Lyman Power Trimmer and never looked back. I think Lyman discontinued the Power Case Trimmer (why? I don't know) but RCBS makes one. I will never go back to a manual trimmer.
As to my Redding powder measure, I've used nearly every brand of powder measure out there starting with an old Ideal measure through Lyman, RCBS, Frankford and Hornady (never Lee, never never Lee). None compare to the Redding. It will dump very small charges more accurately than any of the rest of them. Yes, it still has a little trouble with large grain stick powders but not nearly as much as the others I've tried. So there's my take on it. Take it as you will.