The boy (ok, young man, but I could be his mom...) we paid was very nice and did a good job. Much faster than dh!
We did not have nice plywood subfloor - we had chipboard. And it gave me splinters and the glue made my feet peel when I walked on it barefoot. I am feeling somewhat hostile to even having chipboard in my house now! This morning I walked into the room in the dark, and when my feet hit the nice, smooth wood, I realized I had winced in anticipation of the chipboard.