Softer light with Elinchrom Rotalux 90x110

Finally the time has come to soften the light from my Elinchrom 500BX Ri kit! For that I decided to go with the Rotalux 90x110cm softbox. Here is a picture of contents of the box as it arrived in the mail:
Not sure if the chocolate bars are included by Elinchrom or the web shop that I bought the Rotalux from, but it was a cool extra to find in the box!

Why I got this, other available options and initial thoughts are all listed down below, so read on!