I I bought and totally regret it. Although I have done all the steps in the Manual (READ ME FIRST.txt), the application is not connected to the web service. After a few days of follow-up support, they said that the help file had not been updated and that you should update your PHP version.
I did any things and my problem was not resolved and when they asked to send me the "api.php" file they said that our working time is over and you should pay for it if we can do it for you.

Main weaknesses:
Lack Integrity between Code and manual
Very week support

Strengths:
Not seen yet.