i bought it last month: it was a great surprise!
It has fully native byte code encoding and it works on 99% of hostings without any php.ini modification and you don't need to install anything on server!
For example, last work i did it's on low costs server (only 8$ a year)!
there aren't funcions like ip or domain restricts or expires, but it's easy to do them with classical programmation and then you can encode all!
security it's highest possible with sourcecode completely removed!