Quick and to the point: G7 was freezing intermittently, emailed support, support guy said it sounds defective and wants to ship me a G9 in it's place. I don't even have to mail the old one back. Except for maybe amazon, logitech has the best customer service I've ever seen. They've also helped me with replacements in the past with the harmony 360 remote when I couldn't read the lcd text on the remote any longer. In short, Logitech rules!