Bad: Came upstairs from watching crash to find the internets down and the router lamps flashing ominously. A power down, then a push-button reset did no good.
Good: I happened to buy a new wireless router on one of my last business trips - I forgot a cross-over cable and it was the only way to connect to a piece of test equipment. So I had a spare hanging around, which had not made it over to the office. So, painfree swap out.
Bonus #1: Absolutely no problems getting back online with the new router - I feared having to dig up and reenter passwords and user ID's and the like.
Bonus #2: New router has faster WIFi, better security, and better range. All good for me since I am the one who uses the WiFi. (Zippy is hardwired)