2 years ago, I bought a OPUS 2 with the Air Annex. Can't be happier with this. This camper uses airbeam technology to basically inflate a canopy over the tub. Takes about a beer and a half to inflate. We can completely set up camp in about 15 minutes. Take down is about the same. Ours has a full queen size bed in it. They have an OPUS 4, but the beds are too small for my fat ass. And it is just my wife and I with our dog. We have about 8K miles on it in every kind of weather you can imagine. It is also truly an offroad trailer. It has 16" of ground clearance, and the suspension is fully independent. If our Tremor can go there, so can the trailer. Fully articulating hitch as well. We initially bought it to be pulled by our Bronco Raptor (its only around 3K lbs fully loaded), but we like the space of the Tremor, and the Tremor doesn't really even know its back there. We've done a ton of changes to it. We completely overhauled the electrical with full lithium batteries, our solar swings up on a rack, and we have a DC/DC charger so the truck charges the lithium when goiung down the road. We also have anout 80ga water (40 internal) and 40 spares. We can be offgrid for a little over a week. Note though, this is not a full trailer as there is no toilet. Grab a shovel and get cozy with nature. We've travelled with a little chemical toilet...once. It leaked on the back trails. And you can find very lightly used ones all over facebook.