I bought my Aliner new in February 2018. I went on the road in September that year. I go back to PA in the summer to catch up on medical and personal things, usually June to late September. Even at my home base, I I sleep in my Expedition. Aliners are advertised as "off-road", but they really need to be "babied" if you want them to last.
Mine has held together fairly well I think. Others have less luck. I mostly drive 60 mph Max when towing. I have towed mine almost 50,000 miles. (My F-150 keeps track of towing miles). I have been luckier than most with leaks. I winter in Arizona so I have less exposure to rainy weather.
Newer Aliners have wind poles that lock the peak together, but you have to be wary of setting up in the wind. I have left my camper open and stayed in it with wind gusts up to 45 mph by necessity. But I have closed it down and slept in my truck bed if predictions are 40 or more.
I cook inside all the time. Some people don't. It's a personal choice I guess. Nobody seems to mind cooking in their house, this is my house so I cook in it.