I really like the fact that you don't need a key for this item. It opens and closes with a simple twist. The other ones that require a key are very difficult to open. I thought it was just me, but my husband has difficulty as well and he's very strong - he's retired Navy. Their locking mechanism is just poorly designed.
The size is good too. It's small enough that it doesn't stick out like some of those large boxes. Now if I can just keep the squirrels from carrying them off I'd be in good shape. You would think a couple large paving stones would keep them off but somehow they are able to move it. I bought 6 and 1 of them is somewhere in the woods. :)