I don't think there's any argument that a TPMS is an excellent tool, but the concern in this thread is that the TST system could run for a long time with no data received from the sensor/s, and not alert you to the fact it has lost contact with the sensor/s. An hour is a long time to be running without the TPMS working as it should be.
A repeater should ease the problem, but it could still happen, and it could still be an hour before you're aware that a sensor is no longer being read.
My concern is that you could lose contact with a sensor or two for, say 45 minutes. That's not long enough to alert the monitor, then it could regain contact for 5 minutes, then lose contact for another 45 minutes. Now you've been without the use of your TPMS for an hour an a half, but you've been totally ignorant of the fact. Not a very good thing at all IMO.
If you can't depend on the reliability of your TPMS then it might as well not have spent the money on one. And if you are not alerted in a timely manner that your monitor has lost connection with one or more of the sensors, then it's not a reliable system.
I love mine, but I have to wonder now when I look at the monitor if I'm seeing current tire pressure, or pressure from a half-hour ago.