The user interface is very clean with big icons which are easy to select. As to design this projector feels, performs and looks as if it should cost three times the price. The control panel on top is clean and bright and very responsive to touch. The projector is heavy because it is so solid but compact in size. It also has a single-LCD design with a fully sealed dust protected optical package, The gray fabric on top of the unit exudes quality and craftsmanship. The single speaker is very powerful but I used a 3.5 mm stereo cord to connect my compact Sony stereo speakers. Did not try bluetooth. There are two fans in the unit but I did not feel they were too loud as the speakers drown out this ambient noise. When I set up my projector on my patio I was 12 feet from the screen and the image was just too big for my 100 inch projector screen. This unit does not have manual focusing or zoom. It does have digital zoom which works great. When I changed the setting to 85% it was great. I was also surprised by the brightness of the picture even when projected to 120 inches. diagonal. This is a very bright unit and does not need complete darkness. It can also be ceiling mounted.
The picture quality and video capabilities of this unit are excellent. Lots of detail even though no HDR. Watching movies I felt I was looking at a 4K 75 inch tv set even though this is a 1080P unit. Wonderful color saturation and the picture is just so bright. Sample photos shown were projected on bedroom wall and outside screen on patio. Even at 120 inches the image was sharp and clear. Unit supports WIFI 6 but I do not think I will ever use.
There are several built-in color modes so I picked Vivid. There are also controls for adjusting brightness, contrast, saturation, sharpness and color temperature.
A few reviewers stated that they could not get sound from their fire tv or roku sticks. This is not true. If your stick is set to Dolby or some other sound format which is incompatible with the projector you will get no sound. I went into my stick settings and changed sound to PCM and had no problem. This projector supports Apple Airplay and I was able to use my I phone to project You Tube videos.
Right now, this is the best projector in this price range and comparable to units three times as costly.