Meh I think the power up game adds a little something extra. It adds more RNG to an already random game so I think some people are having fun with it. Little confusing at first but fun to play once you understand.
I like it, easy to beat field. It's smart enough to play the gamer community. In fact, online poker card games are becoming more popular. I would be more pleased with a hearthstone-like card game. I'm sure it's a success, sure more room will try to match!