My quite expensive Sidewinder tumbler was in storage for quite a while with a bottle of the liquid tumbling media (never opened by me) stored in the box with it. It was put away essentially NIB when I put it away due to life changes and quit reloading for a time.
When I finally got back to reloading, I took the Sidewinder tub out of the (original) box and it literally fell apart in my hands into a crumbly mess. Evidently, some of the liquid media had leaked out into the bottom of the original box (not in direct contact with the tub) and set up an atmosphere inside the box that destroyed the plastic that the tub was made of.
The answer from RCBS was "buy a new one", which I did in order to put the Sidewinder back in service. Even a discount would have been appreciated, but nope, "you're on your own, sir". I'm not irritated by the money, just the principle of it.
Sorry, but I can't get on the bandwagon of excellent RCBS service. I love the Sidewinder and wouldn't have any other tumbler, but RCBS is not necessarily my friend.