It's a really nice app, fun to use, has many cool features, like you can change the font and the text size can be increased or decreased in small increments, saved words or anything you use frequently is available, and I thought the signature feature was superior.
The form I used was a tight, complicated medical form. The thing I noticed first that I didn't care for was that it didn't snap to the line in a form that is not designated as a "fill-in form," nor fill-in check boxes with a mere touch like Adobe Fill & Sign does.
The issue I found the most troubling, though, was that it lost data upon saving. This is critically bad. I followed the directions and entered the information and completely filled out the form, saved it, and upon reopening it, half the information was missing, like my first name. At first, I thought it was my fault, that I forgot to press "done" after each entry, but I went back filled everything in that was deleted again, pressed “done,” and the same thing happened, more or less. Different things were missing now. This was crucial to my decision to not move forward with this subscription especially considering you cannot pay monthly or weekly and must pay $120 per year.