+ fair good picture quality , best in ceiling. hard to get a clear image when it is not on a completely flat surface. + Wi-Fi set up is easy - Needs to improve speaker, it’s hard to hear . Must need an external speaker. -the volume always goes back to the highest every time — not stay at the same volume as when you stop the video — which I found a bit strange… - needs to improve the fan noise level. It’s quite loud -usb port has no function for video transmission in this model. Needs to buy a adapter if I am going to use it without internet. - missing the travelling bag in the package. Amazon can’t help with it. So I contacted the manufacturer about it and they will send me a bag. Hopefully I will receive it before my trip.