I love the pre-wound spools. It is also very handy to have a place to put a spare spool on the handle to be able to change out in the middle of trimming.
[This review was collected as part of a promotion.] This is definitely a deal breaker!! I use my WORX weed eater 3 times a week and love it. And the free spools for life is awesome!!
The trimmer is just right for my wife to use. She likes everything about it. Ease of operating to changing the spools. She couldn't be gappier. The free spools for life is a great selling point too.