Angle tolerance deficient

Almost everything about this unit is positive, price, design, menu navigation, ease of use and the continuation of the slideshow to the point where you have off.
However, one of the most important characteristics of a digital photo frame, namely a high angle tolerance with no appreciable loss of detail and brightness, not simply given.

If the photo frame as provided obliquely supported on the extended support (for example on a sideboard) the image reproduction with slight deviation from the direct top view up or down is unacceptably poor,
ie image detail lost completely or black and the brightness decreases sharply. So you sit slightly too high or too low to the photo frame, the image quality is poor.

For this reason, a better evaluation is not possible.

Could you reduce the inclination of the photo frame by means of a variably adjustable support, the negative effect would be reduced (depending on the vertical frame is, the lower the loss of image detail with off-center viewing from above or below)