So I have had the Taylorsense in for a few days, and the Humiditrak in that same case for almost 3 months. I have a Humiditrak that monitors my entire music room as well as 2 more in guitar cases. All of the Humiditraks track pretty much the same respectively, so I am very impressed with their consistency. So far, the Taylor sense has been on average 1 to no more than 2 % lower in humidity readings as the case Humiditrak. I chalk that up to the case with its wood, foam and velvet material holding more h20 than the actual guitar, so it will read a little higher. If the Humiditrak changes a % either way, so does the Taylorsense. For me its a keeper and fun to have.
The only downside so far with Taylorsense IMHO is that it is only iOS compatible, not Android like Humiditrak.
The install too was literally minutes. It takes longer to restring the guitar than install the Taylorsense!