You're welcome. I can't think of any disadvantage to unlocking the bootloader on the Nexus 7. Even if you need to return it under the warranty, you can relock the bootloader. With an unlocked device, you can unroot/reroot and flash custom ROMs. I ran my Nexus 7 stock unrooted for a few days, but then unlocked and rooted. I backed up my stock 4.4.2 system, and then flashed Paranoid Android, PA Gapps, and Supersu.
Sent from my DROID RAZR HD using xda app-developers app