Bests & Worsts Reviews from Amazon

I bought these to go with my Worx trimmer/edger at the same time that I bought the trimmer/edger. The trimmer line lasted a long time, but as expected, there came a time to replace it since it ran out. The first spool I used from the Worx WA0010 6-Pack Replacement Trimmer Line worked well but suddenly broke for no apparent reason. Nevertheless, I figured I had done something wrong, so I pulled it out the cartridge and tried to pay out some new line. However, it wouldn't allow me to. On inspection, it appeared that the line had been wrapped on the spool incorrectly and there was no way I could find an end to pull out. I pulled out a new pack and it worked fine for about 4 times, then broke. Again, I tried to pull out additional line but it's almost as though it's fused together or wrapped incorrectly. With ⅓ of my package failing, I am quite discouraged. I'll continue to try the remaining 4 spools but am not optimistic that I will get more than 3-4 times of edging/trimming before the same problem develops. I'll update this review if I fine the remaining ones work fine, but still, a 33% failure rate makes this pack extremely expensive and therefore I cannot recommend it. Unfortunately, the return window has closed so I'm basically stuck.