I'd like to know how thorough they are with deleting you, however. With stories of "ghost" profiles that they build on individuals who don't have accounts (and/or are not logged in), I would be surprised if they actually delete everything they know about you.
I have not read the Facebook ToS since then; assuming that line remains the same, if they do not delete your data and you decide to sue, it's about whose lawyers cam make a better case for whether a reasonable amount of time has passed.
I found the process easy to complete using the directions in the link. It was quite liberating to have my account deleted, actually. Don't miss it at all, although it left some friends and my mom scratching their heads.