Instax is nice but is kind of like snorting drugs is nice to some.. Instax is the cocaine of photography the way I see it. Great snaps but the cost can cripple you fast.

I have an instax 210 wide, and had the autofocus one also until the eject motor went nuts and died consistently mid pack all the time.

Of course if you want to deliver an image to look at quick, as opposed to fiddle in the darkroom as a way to unwind from the day job, like I do, then it may be the way to go.