Prior to buying one of these trimmers, I was using the Lee case length gauges with an electric drill. Compared with the Lee system, this trimmer saves a lot of wear and tear on your hands from vibration, tightening and loosening the shell holder, and cases coming loose.
The universal chuck is quick to operate and saves you having to buy shell holders. The only drawback with this setup is that you have to push the cutter pilot into the case mouth when you tighten the chuck to ensure correct alignment, but this is a fairly minor complaint.
I would consider the power adapter to be a must. It is so much faster to trim this way than by cranking the cutter by hand.
All in all, this trimmer is not on the level of a Giraud, but is also much less expensive
Pros: Fast, ergonomic, no shell holders required.
Cons: Does not chamfer case mouths, need to use pilot to align case in chuck.
This review was written in the old system and had content requirements that are different than reviews written today.