So Amazon amusing referred me to this as one of their "you might like" suggestions. I actually own one of these - a OneStep - which I picked up from a yard sale for well, far less then what they go for here (although mine is not mint and I didn't get the manual with it). As another reviewer mentioned, you can get film from the Impossible Project for this camera. I'd take a look at their website to confirm that the film you're ordering here on Amazon is the most recent batch. They've been improving the film over time so the newer stuff performs better than the older.
Would I recommend one of these? Honestly, no. If you're looking for a Polaroid which shoots the "traditional" polaroid films get the 600 series. Why? In a word - flash. Most of the 600's come with a built in flash and the Q-light for these guys which is shown in one of the photos is hard to find. Impossible Project does sell an add on flash bar, but it's half-again the cost of the camera so again, I'd just get a 600 series. When buying film it's important to note the SX-70 series take different film than the 600 series. This takes PX100 or PX70 instead of the PX600. That's important because if you get the PX600, it'll be too sensitive and you'll need a ND filter to make it work in this camera.
All of that said, this camera outside where it is bright enough is fun. Particularly if I show it to some of my younger relatives who never experience polaroid.