Without a doubt I will go on the record and say that QNAP has the finest NAS software available on the market. Right out of the box the firmware and feature set of the software is number one. QNAP doesn't stop there, though.
With a software support team and a clan of volunteer programmers, new add-on features get added to the QNAP firmware / software combination monthly. So many add-on software packages have been developed that QNAP needed to open a forum so the at home programmer could share their creations.
These add-ons are part of what QNAP calls the QPKG package and anyone looking for unimaginable customization should spend a few hours exploring the possibilities.