Keep your head up Bruce, I still play a couple matches every day, I admit it will be better when more people have access, also if you institute a ladder ranking sysyem, you should see an increase in play.
I'm sure this has been said before too, but the AI on single player needs to weight a characters range choice. By simply moving close andromeda will just kick you till she dies, and Ashi and Darth Vader can be tamed in the far range.
I think Maxro's Idea about a match replay is great. Replay the match at a real time rate to see how it unfolded. Also- Maybe in the future there could be an upgrade in the items or characters for having more than one copy of the card.
I'll echo the problem with the control. A misplced click will make you start out at the beginning again, very frustrating when it happens more than once. Good game theory though 4/5