The new all matte black Husky Tool Chests might be worth a look. They already had pretty decent very nicely priced boxes, but were not quite the quality of Harbor Freight's US General, but now I'm not so sure about that. The newest ones are a little heavier gauge, a more durable feeling textured finish, and have soft close drawers rated a little heavier capacity at 120 lbs vs the 100lbs on their previous gloss finish / chrome handled drawer models.
They are not pro chests like snap-on, mac, homak, etc, by any means, but easily comparable to other more costly weekend warrior brands like Craftsman (or your Kobalt). The one I looked at in the store, the whole thing just felt a lot more sturdy than their previous offerings. I haven't bought one yet but I'm definitely leaning that way after comparing with others.
edit: here's a vid showing them off a bit:
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