It is very easy to use! I like that it can be used for just about anything you want to timestamp - from files/documents (PDFs) all the way down to images in your social accounts or photos taken with an iPhone camera roll. There are some things that could definitely improve this product- maybe they have since when we first signed up there were issues but now everything seems fine so far. We're using blocknotary to help our clients prove ownership over their content as well as authenticate documents before signing them electronically.