It's refreshing to use software that doesn't require hours and hours of setup to learn and implement. You should know how to use this in the first minute or two. Everything is self explanatory. I had no issues with functionality. We bought this to be able to serve pdf's on mobile and it works great. I would agree with some of the other feedback here, it would be nice to have a default setting that applies to all documents you upload, but it isn't really tough to do as you go, just would be a 'nice-to-have'.