This is really the best and easiest module I've ever bought! All upgrades are seamless and I've never had problems with that (while being afraid of doing updates with different modules that you might lose data/content, this module gives me a rock-solid feeling and is really proven technology!). Customer Support is also one of the best I've ever seen. E-mails and help desk always respond the same day. Customer support quality seems to be more and more important when building a more custom website or when you're new with a module. DNNCentric Customer Support should be an example for some other module vendors (some other Vendors really do something wrong: they have a nice product but support lacks, when sending them en email, 1 till 3 weeks later you get a reply). DNNCentric did some custom work for me and they communicate very clear and fast (Email & msn).