Get it… It is simple

Extremely easy to use. Plug and play for even the most beginner. In the FREE version, you can easily assign roles for bookings, add booking and settings such as editor or admin. This is very handy for my clients and myself so they do not screw anything up by changing the settings.
You can customize the look to some extent. You can translate the plugin into different languages and the best is it works with gtranslate plugin very nicely. No issues on the input date.
You must know hoe to put in short codes and add additional function to your short codes in order to get the most out of your FREE plugin.
I use this for hotel booking.