Have fun! The instructions say that you might need two copies of the negative taped together. I found out for me that was definitely true. We also played around with how long we expose it to sun. I usually shoot for 4x6 pictures so I can get 4 pictures out of each sheet.I cut the negative paper first and print in the photo paper feeder.
In the middle of the day we expose it to sun about 20 minutes, but the learning curve is very easy, so you will see how long you need easily. I have even made a negative out of text and used that in addition to the pictures.
Here is one I used for a bed runner I made for the cats. The picture is one of the cats in the home.