Are you guys using any of the replication? If so, have you seen any of the replication failures that are tracked in JIRA right now?
There are 2 or 3 nebulous "replication breaks" bugs that are filed from older versions, but one that says it is still happening on 1.1.1 with no followups from the team.
Filipe I believe rewrote the replication code from scratch for 1.2 so again, it is hard to know if the replication hickups are non-issues or not so I'm curious if you have real world data points here.