I went to the salt lake store on my way home from work and checked them out. They had all three of their big boxes on display. I was impressed with the quality, as much as I could see.
I have been using an old Steeltek stainless steel top and bottom box since 2007 that I bought used off a snap on truck. It’s basically a junk box, but has held up well. The HF boxes seem much better built.
I hate the drawer configurations on the 56 and 72 inch boxes. Too many tall drawers creating a wast of space. I need one big, tall drawer for my 1/4” to 1/2” sockets that all stand upright, then another taller narrower drawer for all my air tools. The rest of my drawers can all be the 2” tall drawers which create maximum storage space. I will add the side box with several more 2” drawers. All said and done it’s around $1000 unless I can find a coupon. I do wish the top box had one full length drawer like the bottom box does. I have a 36” pry bar I’ll have to keep in that drawer with all my sockets. My ocd doesn’t like that.