While the game has a nice GUI and is very appealing, it is unfair and seems to be pushing toward paying money to win. I've been playing it for a month every day now and still haven't progressed anywhere except rookie III. And I'm pretty good. It's OK if the game gives me opponents beyond my level by 1,2,5, even 10 levels. But freaking 100 levels? Seriously? I'm uninstalling it. This is extortion. Almost all players I've faced are incredibly strong and impossible to beat.