Stihl trimmers are ok – to not bad. But you are paying for the brand and advertsing etc, same applies to honda.
However I am a profressional gardener, and shindiawa are the best by far.
Huge amount of power capable of moudling thick over grow grass, dirt etc.
They are costly to buy, but once you have one, you will think a stihl feels like a cheap bunning job or china import. You wont a machine that you will buy for 10-15 years. I run my machine 7-8 hours a day . Flat out, including nature strips over 400 metres long. try the T260X