I have used mine a couple of years with no issue of door leakage. Lately the AQ has been getting more time on the road than smoking time. I usually load and unload by myself and I haven’t been very gentile with it. As a result it is beginning to leak a bit out the door seal, but not enough to cause concern. It will self seal with use.
Like JT I normally store mine in the garage and wheel it outside for use, no matter what the weather. It has been used enough that if I leave the cover off while it is in the garage during the week my garage smells smoky, but I don’t mind. It makes me hungry.