Most of time, I tend to play Warhammer Online during the off-hours, either early morning or late evening. Scenario queues don't pop at all and the RvR areas are ghost towns beyond the Primetime. And Public quests aren't playable when only one or two players aside from myself show up. You may not get Warhammer Gold and Warhammer Powerleveling as easy as usual.
The most fun I've had so far with WHO Game's Open Beta has been with the Public Quests (which I love, when they work) and in PvP (RvR areas and Scenarios). That is-- during Primetime hours.
In other words, this Beta has only been great fun for me between 3pm - 9pm. Michelle usually works during this period of time so she has yet to see a single bit of RvR or Scenario combat and her opinion of Public Quests hasn't been as favourable as mine.