What do you like best? I often need to fill out forms for work. With Pdffiller it is simple to upload forms, fill out, save and download to email. I also use it to merge PDFs as well. It saves all of your work and keeps the documents in my account for future reference or an easy change/update. What do you dislike? There are a lot of features and sometimes it is hard to find exactly what I need. A simple "How do I .... in pdffiller on google usually takes care of it quickly. What problems are you solving with the product? What benefits have you realized? Before Pdffiller I would print the document, fill out by hand, scan, then email. Now my documents look more professional without and are less of a hassle.