Yes, that is typical with most of the newer stoker units of other brands.
I love the CoalTrol! My Hyfire stove was only Rheostat controls, so only SLOW or FAST, plus mounting it in the basement, I wasn't going to run up and down to adjust temperatures when you got cold.
The CoalTrol maintains almost perfect temps, adjusts feed and blowers as needed. No big heat temp. swings on/off, it regulates the blowers on variable speeds to move the air around and you don't even know they are running.
It does save coal by adjusting the feed according to the heating needs, thats the problem with the thermostat ones, it will click on, heat up, click off and keep throwing off heat and normally overshoot a few degrees, then sit there cool down.
I would use your stove for the first season and see how well it maintains and then see if you really need it. Some people are very satisfied with the standard thermostats/idle timer settings and blowers.
I have one stove (Keystoker) with the standard Thermostat/Idle timer and it works well as is.
Just my 2 cents.
here's a good writeup from another member.CoalTrol Review