The file resolution I had only had enough for 203DPI, so it looked like a normal poster print. If you can get 250-300 it will look stunning. Below
200 becomes iffy, and below (from what I've heard on the internet) 175 you might as well not print it, or print a smaller size.
DPI = [Resolution(L or W)] / [Paper Size(L or W)]
You will want to do both length and width separately as it will print in
the quality of the LOWEST of the two numbers.
For finger prints, yes they can be an issue.