I’ve had my z series for about 4 years, I ordered it as soon as I bought the truck. Also have the cap pack drawer in it. I’ve been very happy with it. Though, I saw the overland series it isn’t any stronger than the Z. It just has some bed liner on it, as if you’re going to protect it from pinstriping. You won’t. Not if you’re actually using it in the woods, otherwise it’s just a “mall-crawler”. Not worth the extra 250. The rooftop load bearing rating is the same on both. If you need a higher roof weight look at RSI or another metal topper.