We use our TT at home, almost all year long. And actually, we are now sleeping in it again every night, starting last night. Finally got warm enough in Indiana heating it won't burn through a tank of propane ever 3 days!
We use our camper bathroom, and the camper sites about 10 feet from the property line of the next neighbor. When I dump the tanks, yes there is a small odor, but it only last for a few minutes, while dumping, and then disappears. If you rinse the tote after every use, it will never smell. We've had the same blue tote for 15 years or longer now and it gets used a lot.
At home, I came up with this solution to make it easier to dump the tote. I'd love to run an RV sewer line, but I don't want to tear up two sections of asphalt drive way to do so. This works just fine.
We live in the country and get all kinds of weird smells anyway. An occasion odor of... you know what ... doesn't seem to bother anyone where I live. With horses, cows, pigs, and sheep in the area, an occasional wiff of ... you know ... is just part of life. It never last long.
My solution in the photo below. I had to build the ramp to get the tote higher than the septic opening. I had that opening put in so it doesn't have to be dug up to get pumped out. It now works perfect for the trailer.
And oh ... in the Summer, warmer months... our Outback has an outside kitchen. I've attached a sprayer to the sink faucet, and during the summer, will take a shower outside! The way the camper is parked, especially at night, no one can see what's going on. Yup, I suppose that's grey water going on the ground! (actually on my drive way!)