Not an issue at all. I’ve checked this container before on DL. I was on military orders so I didn’t get hit with overweight fees but as long as you are under weight limit and the container meets the outlined dimensions you can check it.
I do recommend using a container that has locks/clips rather than relying on luggage straps to hold the container closed. Also, TSA may remove it if they elect to inspect but you can cover the locking clips with packaging tape (or wrap packaging tape all the way around several times) to keep it closed. If you don’t have the ability to get a container with locking clips, you can still use the packaging tape around the container you do use.