I like that it can read all different types of pdfs without any problems at this time! It is not very intuitive but you get used with little practice or help from customer support if needed in no time.
There are some features which could be improved such as text recognition (it sometimes recognises wrong words). Some people may find it difficult for themself due to its complexity so maybe go through tutorials first before using product? Extracting multiple documents into one file was something i did frequently when working within my companies office environment where we have many confidential docs stored away but now they're easily accessible again via our cloud storage system!