Which tool chest should I buy?

Buy the best quality and biggest you have space for and can afford. (that goes without saying) I would stay away from the Snappy box the OP posted a pic of. It's a clam and their economy box. Painting a tool box is a POS of a job. Most all, except for the cheapest models will have roller drawer slides. That's always a plus. If the box has a big top drawer, make sure your deep sockets will stand upright on a clip rail or pegged holder. Some don't.