Use SmartBox - NOT "Pods."
The "Pods" were the 1st WIDESPREAD company to make use fo the concept & now they are the best-know.
BUT - WAY overpriced. It is like doing all your grocery shopping at SevenEleven.
Smartbox allows ammo (ask me how I know). I would NEVER leave a gun under anyone else's control; they stayed with me the entire time).
Instead of steel, the Smartbox boxes are WOOD but covered so well with vinyl that they stayed dry during very heavy down-pours here last summer. Their delivery time occurred on the day promised, though not the correct hour - so be warned.
Side note: I got a city-permit to "park" the boxes in front of our old condo. Then I extended it for 3 days. A pissed-off liberal neighbor left me a "nasty-gram" about how I was supposedly over the limit of the permit, how I should show some consideration, and (this is the best part) I "deserved a ticket for each parking space" I was supposedly unlawfully blocking.
Quoted:
Used it for storage and moving worked fine. Only two things I did not like:
1. They do not let you store/move firearms or ammo in the POD, I stored ammo in it anyway but took it out before moving.
2. Charge me $1000.00 for move crossing state lines!