Have already moved 2 of this 50m rolls and have not had any bad experiences.
If you really want pure copper may 50+ minimum spend then also gladly.
For ~ 13 I find nothing better.
Unfortunately !! that the cable is not in such a role as in the photo but comes just wrapped. So at first hand, or "unwinding" it all falls apart anyway ^^
But for me and my devil Viton 5.1 it suffices wonderful.
Can not compare with high-quality copper cable because I do not own anything.
I think, however, that you can hear up to 100W RMS no noticeable difference .. It corrected me if I'm wrong, just my opinion
I can highly recommend the cable so. Will buy it again if I need again 50m!
4/5 stars only because the product is not so arrives as in the photo.
Functionality in relation to the price? Full 5/5 Stars !!