This MegaRetailPack is pre intended to those users who want to develop, design and raise their skills in that domain – to design. I personally suggest you to buy it before you start a business, if you want to make business around. You can stay chill cos all of it is fully clean and running property – I refer to envato’s product. For other scripts who’s are nulled I can’t guarantee the environment of running, but I can guarantee to you as it is fully clean and do not include callbacks. I spend many days, and probably months to check all pieces of code.