We have used PDFFiller for years.

What do you like best?

We have used PDFFiller for years. I like the ability to use editing tools other apps charge extra for. The ability to use the mobile app was especially useful when we were in a bidding war for the purchase of our home. We were able to edit and sign purchase agreement on the fly.

What do you dislike?

User interface has not been updated in a while and feels a little clunky.

What problems are you solving with the product? What benefits have you realized?

We have clients sign documents and contracts. We are able to edit PDFs directly rather than scanning or retyping documents in a word prove easier.