Tech support was very responsive and helpful.
Good follow-up. Wiring was complicated for me, I'm no electrician. But once installed it worked, and was easy and pretty intuitive to set up and schedule. Now my bathroom floor is warm and comfy twice a day when we need it to be. Yay! This was a replacement unit, the first one lasted 14 years and was less friendly to set up than the touchscreen version, and fortunately the old wiring was the same as,for nSpire Touch.