This HDMI cable is a lot cheaper than the brand variants. Loss of quality there can not be - either the digital signal comes or it does not come on. This it does after about 2 months but at times not. There are disturbing image failures (milliseconds), even though the cable was barely moving. Because of the favorable price makes just yet noticeable.
Because rather a few euros more, and a cable is functioning as it should, and indeed permanent.