I bought the device a week ago. The image, the sound, the Ambilight and 3D are great, but the operation and menu navigation are catastrophic. The device asks constantly for a software update (WLAN was furnished and are connected). If you want to carry this out, the device switches off and back on and bring the same message over and over again. If one looks for an update from the mauell out settings found any updates. The menus have no "back" function, you always have to start from scratch, and in the slow-reacting and ruckelden characters you get eye cancer. Also you can not switch back to the TV program from the TV guide, you have to select an AV channel and zurüchschalten into TV Program from there. In 2 of 3 times, the projector will no longer switch off and not respond to any command more. Since helps just pull the plug. Have zurüchgebracht the device. My advice: Stay away! I hope not all devices from Philips are schrottreif.