Our house stays between 38-50% for indoor RH most of the year, according to the two hydrometers that I keep out and the one on the fancy new furnace thermostat. The lower numbers occur during winter heating season, and the higher ones during summer irrigation season. I regularly check on the physical condition of the wood instruments in the house when playing them. Watch for signs of dryness like sunken tops / sudden low action or fret sprout. Excess humidity is never an issue.
The only thing that the Taylor Sense would do for me is provide one more thing to needlessly obsess about. It takes a couple of weeks for humidity issues to appear, not minutes or hours. But hey, whatever floats your boat.....
