I have an analog Johnson controller on my 12 keg keezer, that stays pretty stable where I set it at around freezing. The setting is not that precise but it seems very steady and reliable in "set and forget" application. Regarding sensor bulb, it is lower down and very near full kegs, so it is not affected much when freezer is open.
Inkbird 308s control my glycol chiller, fermentor "coil" and heater, and for controlling heat pads for keg spunding and D rest temps.
The Inkbirds are inexpensive, versitile as they can run heat and cooling devices, and turn on lag and temp swing can be controlled. However, they do occasionally fail, when they do, they usually seem to freeze things up. I've had the Johnson analog for a long time and it is very reliable.