I've never been a huge fan. I had 2, still have one (at home). They just never fit what I want them to fit. They are not deep enough, and the drawers are too shallow. Also not a fan of the slides, and the pulls are too small. Feel like I'm playing with dollhouse furniture every time I open it. I need way more of them to fit all my stuff, and that takes up too much real estate which I don't have.
Give me a good mechanic style box with ball bearing slides (with many shallow drawers) anyday over a Kennedy top box. I know I'll be judged for that, and have been judged for that in every shop I've worked in. It's a rite of passage to be a "machinist", But I'm just not a fan of machinist boxes for the tools I need at my job nowadays. They ARE decent for holding some machinist specific tools though, like layout tools and other more manual specific stuff, but I never use those at work anymore. I do at home though, which Is why my Kennedy is there. But having to open and close those drawers all day would drive me nuts. I tried it, I sold it lol.
I DO like their bottom boxes though, just never see them around here in my price range. I'd love to pick one up for work, and bring my big beach home and restore it.