I played it a few days ago (it was already in my store). It's the most cynical kind of freemium game there is. It's supposed to be a city builder but the whole game involves waiting around for timers and it has no real gameplay at all. Place a building and wait this many minutes for it to build. Tell someone to go do something and wait that many minutes for it to complete. When the task is done, you're given a little XP and ingame money which isn't that useful. The timers of course keep extending to the point where you can't actually
play the game at all. You'll start the app, collect your money, set a few tasks and then forget about it for hours. It's all designed to get you buy their ingame currency 'donuts' so that you can speed up the process. It's not even like Tiny Tower where you can constantly keep getting the real currency just by playing or have something to do while stuff is building. In this game you just wait for timers.
edit - Toucharcade did a video on it. Shows what I'm talking about -
http://toucharcade.com/2012/08/31/ta-plays-the-simpsons-tapped-out-a-free-to-play-building-sim/