The Nail was a great read. I look back on it every once in a while and it's amazing how tightly constructed it is from a plot perspective. Almost every page gives a clue about the final reveal, the whole shebang cohering more and more with every new scene. And it helps that I wasn't familiar with a lot of the older characters like Shade or the Atom at the time, so it was my first real exposure to how cool they could be under good writing.
Another Nail wasn't as good, but it was still a fun read.