Hermit, I agree with everything you've said, but I didn't have any of the problems you mentioned with your wood deck. Mine fit perfectly and was well-built. I wish the wood was sealed, but that's something I can easily do myself.
I took mine out again this weekend - hitched it up behind a buddy's SuperDuty, so he and his lady could have his cabover camper to themselves, while my wife and I had our Lifetime Tent Trailer to ourselves. Obviously, these are two completely different solutions to the same "problem" of how to camp in comfort. The cabover camper is quicker to set up at camp and has everything built-in, but the Tent Trailer opens up to make MUCH more space. You can cook in a cabover camper and it has a tiny bathroom and has a built-in heater, but I've solved those problems with a "Luggable Loo" for bathroom needs, my regular camp cooking gear, and a Big Buddy propane catalytic heater with an adapter hose to a BBQ bulk propane tank. I still don't like the idea of cooking in the camper, since my buddy's cabover will now smell like onions and bacon for eternity.
My biggest concern over a "big" purchase like this (still, a lot cheaper than a pickup and a cabover, or most other popup tent trailers) is the longevity of the tent. The trailer will last forever, but the fabric will only last as long as you take care of it. But considering the fact that I got 10 years of extensive use out of a $29 ground tent, I don't think I have too much to worry about since this tent trailer is much heavier duty and better built. Unlike a regular tent, this tent trailer uses thick PVC (like a river rafting innertube) on the bottom and partway up the sides, along with ultra-thick tent material in the upper sections. I've found that it is perfectly watertight (I've camped in the rain with it several times now, including this last weekend) yet the fabric breathes great (I never get ANY condensation on the inner walls, even when using the catalytic heater all night, which is one of the biggest "problems" with this type of heater).
I've set up and taken down the tent trailer enough times now that it's a piece of cake for me to do it all alone. It goes up really fast - most of the time just is spent fine-tuning it, cinching down all the tension straps which is no big deal, but which makes the tent nice and rigid even in strong winds. I love the fact that the platform support legs have enough adjustment in them that they reach the ground just fine in spite of the 4" greater height from my oversize 31" tires, without needing the 4x4" foot blocks I made because I thought I would need them on uneven ground. My main complaint is that water can collect in the storage bag when the tent is set up in the rain. I've never gotten water inside the tent, but when I get home I need to erect the tent and let the water dry out of the storage bag or else I'll worry about mold being a possibility.
After a year of use, I'm still in love with this tent trailer. It's not the perfect solution for everyone's needs, but it's perfect for mine and I have no hesitation recommending it for others. I'm one of those people who are hard to impress - but I'm impressed by the design and quality of this tent trailer.