LockDown WP - Lock down your WordPress from unauthorized changes

Hey all. Have run in to a number of hacked WP sites over the years, and almost all were related to the fact that the files were writeable. LDWP is a simple brute-force way of locking down *all* files to be unwritable. When you want to add/update files (media, plugins, etc) you press the button to open things up for a few minutes, then do your business. It'll automatically lock things down again after those few minutes. Looking for any WP folks who currently design or consult with clients who use self-hosted WordPress to use this and give some input. Thoughts/feedback are appreciated!