Very easy to use and love the fact that the paper is a sticker too! The paper size is great! Not too big or small. They fit standard Instax photo books! I would give 5 stars if the print quality was better. I have noticeable print lines in my prints, the reds are a bit orange (my phone corrected this when I took the picture, but I'm more orange personally), and the contrast could be better. Prints turn pink or yellow in outdoor light. If the printer is supposed to have print lines, that's ok, I just hope I didn't get a defective one. My before and after photos are attached, phone photo on the left, zinc print on the right. Personally, it's a bit blurry. The other two photos show pressure lines, but if that's the way it's supposed to be then I agree. If not, I have a bad model. It's up to date and I loaded the paper correctly and it's official HP galvanized paper. (The middle photo I uploaded is old, this is a screenshot from Snapchat, the rest is taken on Note 8 in 2017/2018.)