Though it wasn't an '07, I had a TJ with a rear Tuffy storage box. I never had anything stolen out of my jeep, so I'm guessing it did a good job
I plan on getting one for my current Jeep as well, when the funds get in. Seeing as Wranglers are not the most thief-proof vehicles, it wouldn't hurt to get some extra security.
I can't think of any cons at the moment. The closest thing to a con that I can think of is that sometimes, the consoles can be tricky to install. I wouldn't let that deter you from getting one though.