I love using this product but my biggest issue is.... The second week I used this was on wet grass and now no longer works. The motor is completely vulnerable to water. Forget being waterproof it's not even water resistant...

I am sadly disappointed by Stihl the company when my whipper sniper broke down . It was a very useful efficient tool . BUT there was no advice to say to never wet the head as the electric motor is there and not sealed . Water in the motor shorted out the control unit at the switch which was quoted at two thirds the cost of replacing the machine. Causing huge environmental waste and massive cost to myself . I tried to speak to Stihl who said they would get back to me but never did .

Cuts even heavy duty weeds but not designed for little old ladies with small hands! I find the battery next to impossible to get out at times and the head I can't get off without using multigrips and sheer grit and determination. It also doesn't come with a strap but fortunately my son improvised one for me. Update 5/11/17 I have overcome the battery problem by pulling the spring things at the back of the battery compartment further out. I also put some vaseline on the rails to help it come out more easily. Happy now.

Cordless convenience. As powerful as a petrol trimmer. The turbo charger recharges in around 20 minutes. Usual 'bump and feed' line delivery system is easy to use, and uses any two millimeter line. Chews through heavy grass and weeds. My lawn is less than 200 square meters, but has plenty of edges. Battery still has plenty of charge to run the blower after use.
High quality, well balanced, shares battery with 36volt family of products.
Expensive, but high quality. May be too heavy for some users.