It's worth it if you need them. There are cheaper alternatives non-selectable options, also other selectable alternatives like the Harrop e-locker. Really depends on use, budget, and who will be doing the install. If you use a local shop, they may only install what they sell, and they may only be dealers for a certain brand. I don't think you'll find many people complaining about an ARB, they are quality and work as advertised. Like anything that is mechanical, things do break over time with use (sometimes improper, sometimes s*** happens). If you got the cash, and have the need for a selectable locker, I think you'll be happy with ARB's product.Any opinions on air lockers? Like ARB and the like? Is it worth it?