Looking for feedback / thoughts on an EA6500's Guest Network + RE1000

Hi -

A friend has an EA6500 in a small business and is extending it with a RE1000 successfully.

They don't have a guest network and allow patrons to use their WiFi - opening up the private employee / business machines to snoopers.

My thought is to enable the Guest Network - which is a no-brainer.

Are there any issues with this process:

Change WiFi Password (obviously)

Enable Guest Network / Name it accordingly / password it

Reset RE1000 / reconfigure to talk to the Guest Network via Site Survey

Since the guest network requires Authentication via the 'web page' - will the Extender handle solely the DHCP requests and allow for the router to handle the authenticaiton?  Or will there be a battle-a-brewin'?

Any 'gotcha's'?

Thanks much.