Status of Queues


Just wondering if anyone had an idea as to the status of Queues in Asterisk and FreePBX.

Whith the release of FreePBX 2.3 and Asterisk 1.4, have queues become more stable and work as advertised? Roundrobin, priorities, etc

Would you recommend using queues in Asterisk 1.2 or rather use 1.4 or no difference?

If there are still issues - what are they and can they be worked around?