What do you like best?
PDFiller is ultra-convenient and super-easy to use. It's in the cloud, so it's easy to access. And it has a vast array of features. Storage is a cinch, whether on your hard drive or in the cloud.
What do you dislike?
I can't think of much that I don't like about the program. There might be a more direct or seamless way to save documents to Google Drive, in terms of getting them straight into a particular folder instead of just onto the Drive, but that's a minor issue.
Recommendations to others considering the product:
Try it. You'll like it.
What problems are you solving with the product? What benefits have you realized?
PDFiller is a lifesaver when I'm editing contracts and related forms. The clarity of the input and the ability to maneuver the text around the document is a huge plus. Line-outs and erasures are a breeze, making for "cleaner," more legible documents.

What do you like best? It has the main features that I'm looking for: I can upload a pdf, add text, remove text, blackout text, etc. It also allows e-signatures. What do you dislike? The process to download files is a little tedious. You have to single-click on the file from a list, then the program takes you to a new page to rename and choose the download location. But if you accidentally double-click on the file, the file will open instead. I've been using this program for years and it still takes me way too long to download a file. What problems are you solving with the product? What benefits have you realized? I use pdfFiller to fill out forms for work. I used to have to print these forms, complete them by hand, then scan them and shred them. With this program we get to eliminate the use of paper and save time.