Case feeder Yes The large pistol casefeed(45) works for small pistol(9mm) as well.
Powder check system Yes
Low powder sensor No Its right in front of you. If it gets down to 1/4 time to refill.
Strong mount No Depend how high your bench is , Do you want to stand up. Will it be too high and you need a stool for changing the casefeed plates.
Bullet tray No The lid off a cookie tin works just fine.
Aluminum Roller handle is a nice little touch as well.
Spare parts kit. Yes they have an awesome warranty but things do break, just at the most inopportune time and you can't wait for 2 weeks for the little retaining clip to arrive.