Usually, a "solid" review for a first-ever video highlights clear visuals but often notes that microphone quality could be improved.
The MP4 format itself is considered the "solid" industry standard because it is universally supported across almost all devices and platforms. 1_video mp4
Common feedback for such files includes a lack of a definitive beginning, middle, and end , and a need for better audio balancing (e.g., background music being too loud compared to speaking). Usually, a "solid" review for a first-ever video