Just my .02.... but the two most important factors when buying a TH are the true loaded wait and the correct/proper floor plan when purchasing the unit. From my experience, as previously stated, the salesman will tell you your rig will pull it. First, find the true weight your truck can pull. Just adding airbags, or a more heavy duty hitch equipment doesn't mean your truck can pull more than its rated. Don't be afraid of buying a fth wheel. They tow nicer and the expence of a fth wheel hitch is no more than a tow behind hitch with weight dist bars and anti sway bars.
Next is weight of the trailer from the manufacture. If you look in the cabinent, usually under the sink it has the weight of the unit.........but be warned these weights are usually the weight of that trailer in stock trim...Not the weight with upgrades such as a bigger geni, bigger tanks, extra beds and or furniture!
I would recommend you really take your time! Alot of people and other manufactures bash Weekend Warrior. Truth of the matter is, yes there are units out there that may be a little nicer or seem like a better deal.....but, what about after the sale? What about their reputation? I bet you could ask anyone that owns a warrior how they liked it and they will give you positive feedback. If they have something bad to say, it usually is anger with the dealer, not with the unit itself...