Comparing the ones that I've seen, I thought the Homak looked to be a little better than the Stack-On. Corners bent a little better, spot welds looked better, I've seen some Stack-On stuff that some of spot welds popped on when it was dropped during shipping.
Go ahead and buy one now, then start saving for a real safe. You will always have some use for a locking cabinet, like to hold the overflow from your safe.
bergie