I debated between the aluminum and steel versions. I decided on the aluminum because of the weight factor. The box was relatively easy to install. Because my truck bed has strap rings on the sides, I elected to drill into the SIDE of the box. I used "U" bolts to attach to the strap rings. This works just fine. The box holds a LOT of stuff. And, it appears to be rainproof. I spent a month in a rainy area and it did not leak.
I've had it almost two months now. Today, the shock on the left side of the box lid popped off. I was able to place it back on, but I may have to replace it. I'll have to work that thru Home Depot. This is the only real issue I've had with it so far. But it is troubling.
Pros: Easy to Install, Good Size & Weight, holds a lot, good for a short bed hauling a fifth wheel trailer
Cons: may not be durable because of lid shocks