Tiny Tower

Tiny Tower, by NimbleBit in a very fun game. Quite similar to the old SimTower and Toot Tower from day gone by, you build a tower community from the ground up... well from the lobby up.
 Each floor supports one function (food, residential, retail, ect), it's up to you to decide what is going to be built on each floor, if you decide at a later time you want to change it, you can delete the floor (note, I haven't deleted a floor yet, I've only seen the option to do so. I do not know what happens when you delete a floor), you can also repaint any floor you want as often as you want to, which is a very nice option.
 Yo are in charge of filling up the stores (every kind of floor choice works like a store except residential), all you do is select the item to stock, wait until its ready and click on the stock button, assuming you have hired someone to work that store.
 You earn Tower bux when you accomplish certain things, like finding a person or adding a new floor, plus you occasionally earn a tower bux when you completely fill up a store, also certain times when you take a person up in the elevator they will reward you with a tower box.
 You'll also receive VIPs on occasion, you can store up to five VIPs in your lobby until you are ready to use them.
 Tiny Tower does allow you to buy tower bux, but it doesn't force you to, unlike so many 'free' games out there, Tiny Tower makes it easy enough to play completely free, which is one reason I heartily recommend it.

Note: I noticed that early on in the game you'll receive more Vips than you can use, while later on they will be few and far between. 

 Have you played Tiny Tower? What are your thoughts on it?