I can't tell what this is just by looking at the home page. After taking a tour and wading my way through all the frustrating "next" buttons I still have no idea what advantages this environment might offer me. As someone else mentioned the site was extremely slow. Feels like it's overly bloated. I'm out before I even tried it.

I've now gone back and tried the sandbox and I couldn't code like this. As such, I'm still left wondering what is the use case for this?