the control wheel is insensitive and the grip is not pronounced. the temperature is realy 1.2°C lower than measured.
The built-in temperature sensor is off by 6c, instead of 21c it shows 15c etc. No erratic or lagging temperature fluctuations, it responds to temperature change very quickly. Wish I was able to manually calibrate it to get fix 6c difference. Installation was easy, but battery access requires you take the face cover off, then, the housing case away from wall fixture plate that screws into the wall. So a two step procedure to change the batteries, not that you have to do very often but still annoying and requires tools and a bit of effort. The menus are easy to follow, screen has good visibility, construction and the turning switch knob are well made. Happy overall considering a friendly price point.