Stokers are pretty good. Getting them dialed in properly is often a challenge that many are not prepared for when they purchase one.
Can you imagine how many folks (including me) come to this site and don't have a permanent manometer installed on their stoves? Air in, draft out, feed rate and cycle. Once these are setup properly, just monitor and maintain.
Then all you pretty much have to do is feed it coal and get rid of the ashes.
If you've noticed how eager everyone is to help, it's because most of us have been there, done that, got that trophy
If you can be patient and work through the initial setup and dialing in/troubleshooting, you will be rewarded with a very reliable and solid heat that is fairly reasonable to operate and has many of the conveniences of other fuels- turn the thermostat up or down, be happy.