I have been reloading for a while without a trimmer. Everything I read about trimmers made me dread getting one. The manual ones take several minutes per brass and with the hundreds of rounds I usually work on at a time, that would take hours. There were electric drill based trimmers as well, but those seemed only slightly faster and were more expensive. The top tier trimmers cost $200 and still don't speed things up dramatically. Somewhere I read about the Giraud power trimmer. Its quite expensive. By the time you get the trimmer and a few shell holders and blades you are looking at $600 or $700. On the other hand my time is valuable and I have already given up on the idea that I will live long enough to save money on reloading, but perhaps my wife will get most of the money back selling the gear after I die. This thing is great, takes about 5 seconds and not only trims but chamfers the brass as well. If your time is money, this is well worth it. If you only reload pistol ammo or you mostly hunt and therefore reload only about 100 rounds a year forget it. If, like me, you like to go to the range and shoot maybe 100 rounds in a weekend practice consider this. When I sit down to reload I am usually looking at 500 rounds at least. 500 x 2 minutes = 16 hours, versus 500 x 5 seconds 41 minutes. I think manually trimming brass would have taken the fun out of reloading for me. You can get by without a trimmer for a while, but eventually you will have problems if you keep reusing the same brass without trimming it. This is not a paid advertisement, but when I find something that works well, I like to let others know about it.