It's a wonderful and useful tool for an office manager.

I didn't know that PDFfiller would charge me a few after a lengthy form that I had to fill, I paid the fee and left a comment about the experience. I promptly heard back from a representative who made things right without me asking for anything. Customer service at its best!

I really liked the variable size eraser. I needed to send my bank statement out and I did not feel the party needed to know my balance when they were only looking for a particular debit.

What do you like best?
Easy to use, anyone who I've sent a file has had no issues receiving and downloading. Some of them have told me they've gone on to use the product regularly themselves.
What do you dislike?
Nothing to do with pdffiller, but I sometimes forget to set up the files I'm uploading in the right folders. That's on me.
What problems are you solving with the product? What benefits have you realized?
Under the 'documents' tab, the 2 columns on the right could be made more distinctly different from each other to denote they are in fact different. They are just two shades of gray and not that different in tone.

unlike any other product on the market today

Went beyond what I needed. I'll be purchasing a subscription!