Good value for money
It's not perfect, some functionality could do with a fix or upgrade, and the GUI can use some tweaks (might not be as intuitive as you are used to). However, once you work your way around the menu bars, it does represent a much more affordable alternative to the mainstream PDF editor (particularly if you can pick it up for an introductory offer). There are some "premium" features that you'll have to pay extra for, but for basic editing is does 90% of the task (for ~10% of the cost).