excellent. I could not have dug the post holes with the conventional post hole digger in my sloped area with roots and rocks. I did use my hand saw to clear out the larger roots. & I did revert  to the old hole digger when I wanted to jam out some rocks. I also used a trench shovel to break lose some rocks out of reach and then pulled out the rocks with the old hole digger. It worked for this little old gray haired lady. What was particularly nice is that you can slow down or work a bit easier with this auger when you get tired.  The old way is either a constant strain or not getting the job done.