http://wajcun6t3tqaxrxopfqmvjwbojabns4r3c4icclj72eik74ooldmryyd.onion
Cons: You will only be able to talk with other people that has a similar setup inside tor / i2p. (Good reason to share this tutorial to more people :D) Not all XMPP clients will work with this setup, but if this setup gets more popular, hopefully this will change. (For example, Dino does not handle onion / i2p addresses, gajim works with DMs and MUCs, but fails with file download) Slow connection, mostly with sharing files.