Connected via cable, the image size, resolution and color's been great, when compared with what there was for the same price a few years ago. I had not expected, because in a search for the purpose of purchasing new immediate many devices more than 1000 or even over 2000 came out, and I then at gümstigeren model in Full HD slight loss in quality to the image expected - but not found up here - have. Even Excel in Full HD on a big surface is actually an entirely new experience ;-)
In contrast, the size is still what I know of middle-class devices for years, so "portable" but not for the "sales". Volume is in Eco mode so that you only really hear it if you think about whether you can hear it, otherwise it will disappear from the bewusten perception. "Oh, the projector is still in". So should it be, inaudible to me was not a criterion.
USB and WLAN are for me in the price range more experiments. Playing USB content has in a spontaneous test works, we do not use often.
The only compromising the WLAN dongle topic. Good: it actually works, even with different platforms, ie not just with the Windows PC. Neutral: as others have written, the projector must then be Access Poiunt - of course is not the best, but many simple wireless devices make the currently still like that. Negatives: sacrificing Bidlqualität in WLAN mode (artifacts, especially with moving images). One can with framerate and resolution influence, but we have no setting that we are not the great picture via cable has let yearn, so we operate the device wired. Nevertheless 5 stars because that is in the price range whining at a high level.