I am thinking about getting a Bigbox still a bit undecided. But I have a question about the case. I heared that there are quite a few who don't like the acrylic case at it seems to be prone to breaking and cracks during assembly. Is this still the case or has there been changed anything? Also regarding to the plywood is the plywood stiff enought to not allow any warping? Not sure if this is a problem but I would assume acryclic is stiffer.