We have Pressure Pro on 14 tires and I would not be without it. Have had it for close to 8 years. Best thing is the ability to check the tire pressures from the cab every time I start - especially nice on a cold, rainy morning!
I never look at the monitor when I'm driving, it is mounted down below the dash by my left knee where it is easy to see from outside the cab.
Nancy & Dennis
2005 Mountain Aire FW 35BLKS; '99 Volvo 610