This aux cable is having a good build quality and looks pretty with the blue colour, infact I would say it looks cool and calm gives an optical satisfaction, sound wise I would say it sounds good but still it depends in the type & brand of amp you use, over all I would give it 4 star, 1 won't give 5 because still it depends on the amp you use but yah surely you would EXPERIENCE a difference after upgrading from a cheaper one to this.
I recommend this to everyone who wants to buy a good quality cable at cheap price and the lenght is fine but if you need long you can spend more and opt for greater lenghts.