Yes I have, I built a curing chamber a few months ago, and I use both Inkbirds, temp & humidity.
Do yourself a big favor......."BUY THEM BOTH"
You will not be sorry, they what great and maintain temperature beautifully.
As far as humidity goes, so far there is plenty of humidity in my chamber with just a pan of water, so haven't needed the humidity controller "Yet".
But do buy both, I sure your gonna need it sooner of later, and I'm very confident that the humidity controller will work just as great as the temperature control.
If you do get them, and need some help programing, by all means send me a message. Programing is easy, once you figure out what the directions are saying.