How easy is this projector to use ? I am not tech savvy- I basically want to just be ble to switch it on and watch a movie. Is it complicated to set up for movies ? How can you wtach Netflix or Amazon Prime movies through the projector ? What do you need to connect or download to be able to watch netflix easily ? Do you need to use the amazon fire stick or what exactly do you need to do to watch netflix or any other film streaming service ? Is watching movies with this projector a good cinema experience ? ( or do you need to have additional speakers or someting ) Can you just use a normal wall for the imge from the projector or do you need a special screen ? Thanks in advance for all your help !!