Slide/Film Scanner Uses Phone Camera (4K)

Yes, another slide/film scanner, BUT this off-the-shelf type uses the camera in a phone. Questions: 1. Will the picture be sharp enough? 2. Will the light be even and bright enough? 3. Is it easy (enough) to use?

We shall see.

This is the other video I mentioned on making your own DIY slide copier with camera:

NOTES ============================
Brand: tonivent
Model: Mobile Film Scanner
Price: Roughly $30 USD
Includes a build in light.