I'm learning it slowly. You cannot merge files in the app on ios. I need that. There are also a few hic-ups. Sometimes after a signature the screen gets disoriented and you have to go back to documents list and reopen. Sometimes after reopening some of the modifications are gone and you must re-enter. Some of these issues may be due to not being connected to internet. Overall it has helped me go paperless and I'm getting faster at filling out my documents using it. A few tweeks and it will be awesome.

The experience before I purchased a license was not so good. The chat session I was on kept ending. The CSR said because I was not logged into an account was the reason. At that point, I was trying to determine if I even wanted to purchase PDFfiller or not so why would I need an account. I finally ended up purchasing the product.

the biggest difficulty I have is when I am trying to re-order documents (move them left or right) -- it is just very difficult to see them. I wish the functionality allowed for enlarging the docs so that I could see what it is.