Overall i feel the mode is great, but i have an issue when there are so many effect to resolve in the fight. Sometimes in normal BG it take forever, and now with 4 players take double time, sometimes you dont have any extra time to do things on your next turn.
I dont think increse the timer is an option becouse games take ~30min and i think that is already a long time. So i think the solution could be acelaterated the resolves after turn 8-9 or add a skip button. Im sure people with powerfull pc just dcd HS and relog to skip the whole resolved and be able to do more things in his turn like they do in early BG.