Purchased this unit from Projectorscreen.com. First, shipping and service were impeccable. Joe, ensured that the unit had gone through an additional QC test on the unit's focus to make sure it was working properly.
Image quality: For now, I'm still deciding on a screen, and projecting against the wall. Even then, the picture is good, with solid blacks, and the colors pop. This is on a uneven, light colored wall. I have no doubt that when paired with the right screen, this projector will look incredible. I've currently tested screen sizes from 135 to 142 inches, and both look great. The size of my wall will likely only allow me to go up to 142, but I'm sure even at 150, the image will look great.
OS: The included android TV is decent, and aside from Netflix, allows streaming from all the other available apps I use (Disney+, Hulu, Prime video, Plex). Each of these apps work with no issue. Sound: The sound on the unit is actually very impressive for its size. I've hooked up the unit to my existing sound system with no issue, but the standalone speakers have some serious wattage.
Noise: The unit is very quiet, and I have not noticed any fan noise when watching any content. The vent on the left side does get hot though so it definitely needs space to vent.
Final thoughts: This is my first ultra short throw projector. I am coming from a 75inch LCD. The extra size and the image quality are definitely worth it. The price point and ease of installation make this a no brainer.