1. Absolutely, one of the best
2. Good looking out, maybe someone with a hammer will look into removing (replacing?) the busted little nut. I'm sure that those things have held a few falls, I hope that they're not horribly welded in the only available place for gear.
3. In the interest of safety and to discourage gang toproping, this anchor was removed by an unnamed climber a couple of years ago. It has since been replaced by other unnamed climbers, and it is actually in better condition than the initial anchor.