I bought this because I wanted to be able to give prints to the many people I meet while deployed. I hoped to be able to give something, anything that resembled a photo. What the PoGo does is make AMAZING prints fast and without needing anything but time and paper.
First some requirement - you need a PictBridge or Bluetooth enabled camera. I never managed to get Bluetooth working from either my Mac or iPhone. It might work on other devices but I don't recommend it. Besides being slow, it uses precious battery power. For USB you will need the cable that camer with your camera. I say that because I lost mine and by chance it was a micro USB connection, not mini USB. I have 50 mini cables but had to get a new micro.
First things first, you need to charge the battery. Mine is a referb and the battery lasts about 6 prints on full charge. A new one should last 10. Not a lot. You can increase battery life by making sure you have all your prints ready to go and printing all at once instead of shoot print shoot print but that is still not going to get you much more. On my Pentax K200 as soon as I connect the cable it goes to PictBridge mode and asks me if I want to print. Every camera will be different but for me I simply choose all the defaults, 3 presses and it starts printing. If you are shooting RAW you will need to process them in camera or switch to JPEG. One last thing - when you first put the paper in the printer you have to put it in with the blue "Zink Smartsheet" face down. The printer will then "print" that sheet even if it is turned off. DO this while you are still plugged in to save the battery. I save my smart sheets and run them through to "clean" the printer. I have read that this reduces streaks. Considering I have had none, I think it works.
I have read lots of complaints about streaking and poor quality. I have nothing but good things to say about the quality. First, no matter what printer you use, at 2x3 there is going to be a limit to the detail. Second, we are talking about a battery operated instant printer that uses no ink. The fact that it works at all is amazing. I have found the detail and color to be exceptional. One caveat - images have that trademark Polaroid green/blue tint to them in the white/light areas. Personally, I think that is plus but I grew up with the original "shake and bake" prints. And it does not hurt to use a DSLR with good lenses and 10MB sensor to get good images to print. I have no idea how it prints with lower rez/lower quality lens systems but on my K200 the results are amazing. And I have yet to have a single streak. As for curl, I have not used any of mine as stickers. The backing is pretty stiff so unless you NEED to stick it to something, don't. And the paper is water resistant - pretty amazing by itself. Finally, if you have access to power, you can print until you run out of paper. Its not too hard to find and there is even a car charger. I have been searching for a replacement/spare battery but so far no luck. The power supply delivers 9v so I my just try hacking one with some 9v batteries.
Other reviews have complained about the cost of paper. If you buy 10 at a time its going to cost you a lot. But Amazon sells 30 packs for $4.29 - about $.15 a sheet - shipped! Fifteen cents. Sorry, not expensive.
Beyond the technical stuff, this thing is plain fun. Everyone loves prints. Where I spend a lot of my time, digital means not getting/giving anything. Now I can take a picture and get a smile a minute later. I will never see most of these people again yet they will have something from me forever. I have a collection of amazing smiles with them holding their prints. It is one of the most fun things I can do as a photographer and worth every bit of fifteen cents.