I was there 2006. Very hot, very crowded, very uncomfortable, but very worth it!
I suppose I went in, rather naïvely, expecting to be totally transformed by witnessing this miracle. Instead, it made me realise that such miracles, while a great blessing, do not provide some kind of quick-fix, but merely make more apparent your inner disposition.
So while I would definately recommend anyone who has the opportunity to attend, celebrating the Resurrection of Christ can, as Ozgeorge pointed out, be just as meaningful and moving in any Orthodox church since it is how you approach it, not where you are, that matters.