However, if you don't want to just take our word for it, then you will need to do some additional research. The most important thing you need to look for in a curbside locking mailbox is how secure it is. Does it have a strong secure lock?
The second most important thing is the quality of the mailbox itself. You do not want to see your mailbox rusting out after only a few years of use. The best way to tell if this will happen is to look around in your neighborhood for people who have already purchased a locking mailbox. Check the quality. I have seen several around my neighborhood of a very popular brand that have a lot of rust after only 3 years.
Finally, you want to see how the locking mailbox looks. It has to look good in front of your house.