I had a Losi box, and burned out a couple motors despite using Integras motor breakin method and it was at best ok with a 12V battery.
However a n00b pitman tried to start my 8T on it backwards
and melted all the wiring and motors smokes.
I replaced it with the Ofna truggy box, quick easy mod to the box and a touch of dremel on the chassis, and it fits WAY better than the Losi box on my 8T, and the 2 X 775 motors turn my Ninja 21 w/o any spoolup like its nothing..
The Ofna truggy box gets my vote without a doubt, BIG time