I am no professional when it comes to web design, so I rely on the third party developers at RealMac. I have always been intimidated by Foundation, for whatever reason, so when I lost almost all my stacks after purchasing a new MacBook Pro, I decided to try Foundry and I just love it. The things is, both Foundation and Foundry allow for the use of other third party stacks and plug-ins. I use Total CMS inside Foundry. Hey both the guys are the best at their game.