I came across Joobi apps while doing Internet search for my new site. On Joobi site there was a demo site with access to its backend. I had an opportunity to see what they offer and how it works before making purchase. They also provide 30 day free trial period. After 30 days of trial I decided to purchase not only JMarket but full PowerPack. I think that installation and update of joobi apps is actually made easy because of JCenter. At first it may seem a bit complicated. But I think it is because it has so many awesome features. I had some problems because the content was not translatable at the point when I purchased the package. Within a month or so they made the apps multilingual and all of the problems were solved. Support team is indeed incredible!