I like so many have spent years using bump feed strimmer heads with all the petty annoyances that go with them. When my last head broke after 2 years use I looked to try an alternative type and decided on the Bessertrim Decimator, largely because of the wired decimator cutters. Do not waste your money! The decimator cutters do not last anywhere near as long as you might expect. The ends of the braided wire curl into a ball and become far less effective and they are ridiculously expensive. The nylon cutters are fine until you realise that the moment you start strimming they become shorter and shorter so much of the time the area of cut is reduced. Stopping to change cutters that are worn down by half is a necessity and unlike a bump feed you have to stop cutting to do it. All in all, it needs more thought and the decimator cutters need to come down in price significantly, or improve in quality/longevity in use.