Well, I honestly didn't know what Ernst organizers were, so Google being my friend and all........ Images....
https://www.google.com/search?q=ern...SB0QHqo4GoAw&ved=0CAkQ_AUoAQ&biw=1024&bih=672
Screenshot.......
Off the top of my head, it's a different animal than the Hansen's. these are rails which enable spill free transport to the work site.
Hansen's are an in the box organizational system........
Apples and Oranges really.
Having an extensive collection of Hansen's, I do at times, although the occassions are rare, desire portability for a given task.
I'd use (and do use rails) these for my travel box, they look like they would keep every socket in its place be the box upright, sideways or knocked over.
My travel box is actually a repurposed Stanley Fat Max organizer box. The individual trays can be removed, the cover locks the contents in each tray and you can carry it like a suitcase!
I've had a LOT of travel type tool boxes over almost half a century of tool love, but this setup I now use is head and shoulders above them all!
Oooops off topic! Hansen or Ernst? Depends upon your need and intended use, in my opinion.
Dave