I own several:
Hornady cam-lock
RCBS original, RCBS trim pro 2 manual, RCBS trim pro power.
Forrestor original, Classic and power.
L. E. Wilson
Dillion RT.1200 b in .223 & .308
RCBS and Hornady power case prep centers
Unless something better hits market will get another RCBS case prep machine.
Once I set up a trimmer for a particular caliber I like to never have to change it again. Low volume calibers get a manual and high volume get power. Since I have a full machine shop we built several case holders for various calibers. My milling machine has programmable X an Y axis feed table so built chuck to hold12 cases but lining the first up is time consuming but the next 11 run without user input. Long run its easier to do at bench with proper tools for me. Most drill presses have more slop than my anal retentive tendencies are.comfortable with. Use what your budget and others experience say. If you like to tinker, when you build a better mouse trap I am all ears and ready to copy it.