Not the full marathon, but I did it when it was only a half in 2009. I don't remember what the facilities were like but don't really remember there being any problems (a bit eaasier for us blokes though). What I do remember though is how hilly Jerusalem is, it was a pretty hard run and the Israelis are a very fit and competative lot. Was a great expereince though and not to be missed. Good luck if you decide to go for it, i'm doing the Tel Aviv marathon next week, finishing off with a beach party...a very differerent city to Jerusalem!