Today I bought it from the Echo dealership in Lamia, in order to cut the weeds from a yard of about 50 sq.m. First of all, it is made in Germany, which of course is very important. Looking at it closely and comparing it to another well-known electric company that I had for many years but broke, and I replaced it with this one, in my opinion it is beyond criticism!!! Exceptional build quality. Therefore, I have no doubt about its effectiveness. It takes a trimmer line, according to the specifications, up to 1.6 mm, but the trimmer line exit holes on the spool definitely accept 2mm trimmer line and obviously smaller sizes. The trimmer head (not the spool) does not change. If I find during its use that it is not what it derives from its quality, I will come back