Yeh it wasn't a bad system, mind you that game refilling your energy bar by the time you really played was - well pointless

I farmed an Iso event for about 12 hours straight - burnt like 75% of my energy stash....for a 12 hour bing on a 'tick' based energy game

But somewhere for XP to go, so we can compete is nice, personally I'd rather it award Kobans