It feels very important for me to know if a temperature or humidity value is old due to a non-reporting sensor or if the temp value I see in the app is recent and valid.
Some temp sensors drops out and it looks like I have +5C in .my garage but it can be a three day old value and actually below zero now.
a small simple time-graphic would also be nice to be able to see trends in the app without having to go in to TP.