I have to admit it, this is a great little post hole digger.
Our soil is lightly compacted, so the digger doesn't struggle much. But if your soil is hard compacted, you should opt for the larger 72cc model, which also comes with a better assortment of options.
Even though this is a small tool, it's still (in my opinion), a two person job.
So far, we've dug about a dozen 6" holes for fencing of a dog run/pen, and the digger is holding up very nicely.