Went from Lee tools (work OK but hand cramping) to a WFT trimmer (one per caliber, difficult to adjust precisely, hard to clean debris off the cutter, still had everything else to do) to an RCBS Universal Case Prep Center.
The precision cutter needs no case holders, is micrometer adjustable, and is totally exposed for while-trimming debris cleaning. A 3-way cutter is also available that chamfers and deburs.
While Case#2 is trimming, you can run Case#1 through up to 6 other case prep steps. EG, chamfer, deburr, primer pocket reamer, flash hole deburr, Neck brush, primer pocket brush.
Cons are its large, noisy, needs to be clamped/bolted down or mounted to (eg) 3/4" plywood, and costs ~$300 more than the basically free Lee tools
