I agree. It's nice to have the auto-scrolling through the tires. Both Tire Minder and TST have that.
Was looking at the Tire Minder manual earlier and it looks like they now have the lock-on sensors. That's new since last time I looked at them. They also have a low battery icon and alert, which my TST doesn't.
(EDIT: Wyoming3310 brought to my attention that my TST DOES have a low battery icon for the sensors. I've just never seen it because I change my batteries and o-rings yearly whether they need it or not. Thank you, Wyoming3310. END EDIT)
A signal strenth indicator, as you mentioned previously, would be useful.
None of the TPMS systems makes us bulletproof...but I still feel safer driving with one than without one. Ya know?