I like the free for life 6 spools pack ,because it is the best value I could fine for my money. Every where else I looked they were 2 for the same price I pay for shipping and handling.And my WORXS weed eater is so easy to use.
I just love my worx string trimmer. The trimmer is light weight and the battery will last for most of my yard trimming . I just keep an extra battery in my pocket and can quickly change it out and get on with the rest of the trimming. the spools of string are easy to change out so this is a perfect yard tool for a lady who can't use gasoline trimmers.
I bought my weed and edger tool several years ago and I love it! I got the free spools for life and just ordered another pack a few weeks ago. My weed eater is still going strong (I'm just waiting for it to "die" so I can buy the newest one) :)