Used this line for three days of fishing and had a real problem with the line fraying. I have used other fluorocarbon lines in the past and have never ran into this problem. Will not be buying their fluro in the future.
I used 4lb Spider EZ Florocarbon Line on my first Trout fishing trip of the year and found out the hard way that you couldn't us crimp on sinkers. I lost 2 Trout when the line broke off at the sinker. Also if you crimp a sinker on and slide the sinker this frays the line causing it to be weak. After finding these things out I took note to see if the line was frayed and finished catching my limit. No problems.
WOULD NOT USE ANY OTHER TYPE OF LINE.