Just a comment to keep in the back of your mind...
Recently I have seen 2 Linksys Nighthawk R7900P routers reset wiping out configurations. It may be because a forced firmware update. I am seeing signup popups for a support service now.
The other day my router reset and I had to reinitialize the wifi settings from default (I use my own passcodes).
They do offer a way to save the configuration and I guess I'll consider that. However, it does not save passwords to my knowledge.
So, if you have an opportunity, back up your own router and settings, especially if you had to make changes to get an Obi to work.