We operate a dozen of the 12 volts, but the landowner provided them, such as they were. That's the only reason we stuck with Spintech. I put varmint cages on each one; don't rely on the closing to keep coons out. We've replaced a lot of shafts and motors, but I couldn't tell you how old they were when we got on the place. White lithium spray grease is needed on that shaft periodically.
There are lower maintenance feeders out there.
...and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth. Gen. 1:28