We can't use open piles or sheet composting here, as it attracts black bears and raccoons.
Unloading the composter is inconvenient: you position the thing on its side and do it shovel by shovel. The sort that can be dumped onto a tarp, etc. is simpler, but I got tired of having to buy one every couple years.
My favourite is a geodesic orb thing that rolls on the ground. I'll shoot a pic. Don't thinks it's available now.