we are testing it atm. its up and running pretty good so far
Im doing a resync with 1.8.2.1 atm, seems to work and i will let it finish and do a backup before i start updating again.
I deleted the dir and tried to resync just because after the update from 1.8.2.1 to 1.9 sync became more and more unreliable and eventually stopped completly.
ill look into that
EDIT: i have found that it does take a while to find connections, but if you leave it alone it will find one after a few minutes. i am currently working in net.cpp adding a few functions and method calls to get this problem to fix and make it find nodes faster.
[just a thought] i might also change the way the chain updates so you need a minimum of 2 or 3 peers in order to start to sync (although this might probably be a negative over a positive) or mint new blocks [just a thought]