Very well made. The design lets fairly large things go through the door and drop down into your mailbox. Others I've seen are more limited to letters only or very small packages. I bought a larger version which is approximately 14W x 16D x 20H, and I love it. Packages in envelopes such as smaller medication bottles and DVD's slide into the mailbox. Big bottles, larger packages, etc will not fit of course. Seems to be pretty secure. Devoted thieves should be able to break into it pretty easily, with some tools, but I haven't seen any that look more secure than this box. The lock could be better, I may see if I can get one with a higher security (round) key at the hardware store. Thieves also break into the USPS "cluster boxes", and they are about as good as they get. This seems to serve my purpose as well as any I've seen, and my neighbors all have locking mailboxes of differing designs. I got it with the post, and all fit together well and was easy to assemble. I set it in a hole and put a half a sack of redi mix in the hole. I kept the concrete well below the lawn and put the sod back on the hole and the concrete doesn't show. It's securely planted with a strong post which came with all hardware. Nice finish and good looking too. I got sand color to keep the heat down vs. a dark color. Has a sturdy little clip for outgoing mail inside the door and a nice flag that operates well.By the way I used a level and tilted it down slightly to the front so any rain will drain out the front of the door and not migrate back into the mail in the box. It does have an overhang to keep rain out and a gasket, as well as holes in each corner to drain but I wanted to be extra sure my mail stays dry. My old mailbox soaked my mail in the rain, and boy is that irritating!So to recap the security issue, I can't say this mail box will be completely secure by any means but I haven't seen one that is better. Reasonable price for the quality you get in my opinion. (Once thieves went up the street and stole everyone's mail but it was from unlocked boxes. No problem since we all got locking boxes, but we have not had real break in attempts, just grab and run thefts. Other thefts in neighborhood including home break ins have been unlocked cars or homes or mailboxes. These mailboxes work fine to prevent these thefts.)