What do you like best?
The interface of PDFfiller is simple and intuitive. I think that most people can sign up and start using PDFfiller without having to spend much time figuring things out. Once we load a PDF into the system, there are straightforward menu items and labels that help to fill out virtually any form from start to finish. I can save to PDF format with my filled-in information or print right from the PDFfiller website.
What do you dislike?
Anytime I post my information online, I get apprehensive about how my data is being used. Though I'm sure PDFfiller probably takes measures to keep our uploaded and saved documents secure, I just never know with all the malware and server attacks that often occur, in general.
Recommendations to others considering the product:
Some people probably don't want to hassle with putting their documents through a digitized system, but I think once you upload one form to PDFfiller, you'll see how intuitive the entire process and may possibly not print out documents to fill them out anymore.
What problems are you solving with the product? What benefits have you realized?
My handwriting is basically terrible and I often get strains when writing since I typically haven't written by hand much over the past several years. PDFfiller lets me fill out PDF documents more effortlessly and lets me align text and other objects with great precision.

What do you like best? I love the fact documents may be completed and signed electronically without the need to print, scan, and attach anything. It's so much easier, cleaner, and more secure! What do you dislike? The only issue I have had, which could certainly be user error, is that one of the links to an informational PDF (it's a read-only document) sometimes stops working. I am made aware of this when I send the link to someone new and the person responds to say an error message appears upon clicking. I have no idea why this happens and it's always associated with this particular document. What problems are you solving with the product? What benefits have you realized? Per my comments in response to what I like best, using this tool prevents the need for recipients to print, complete by hand, scan, then attach documents to an email. It's also a more professional-looking and more secure approach to document sharing.

What do you like best? Able to quickly modify documents and create professional presentations. What do you dislike? Can't really think of any negatives. Maybe wish it were free. What problems are you solving with the product? What benefits have you realized? Easily convert invoices into delivery tickets. Cuts down on time spent creating documents.