Hello tmir... a stoker is less work, and has less likelihood of operator errors, at least once it is set up and the controls set. The ash falls into the ash pan, so there is no shaking of grates or under or over shaking. And no build up of clinkers or ash to clog the grates.
The only item that can have some operator error is in a stoker stove with manual controls. When I was operating a manual controled stoker in my shop, I had to have patience, if I made an adjustment on the feed, I had to wait for an hour or so to see the results. We have become acustomed to turning a knob and seeing instant results. Well the knob still controls the fire of a solid fuel, which doesn't react instantly. so I learned to have patience.
I would recommend a stoker over a hand feed, but there are some very good hand feed stoves available. and even the ones with a fan still radiate a lot of heat, so you could either leave the fan off [lots of wasted heat goes up the chimney] or put a reostat on the blower and turn it down so it isn't noisey. [if that is your objection to a fan].
Either way, a newer design hand feed or a stoker, it will be more reliable and give much more steady heat than your current stove.