Bests & Worsts Reviews from Amazon

I recently purchased and quickly took this trimmer back. I first thought that having a 4 cyle engine was a good thing. Not. First it is very unbalanced and heavy. Second, it is very difficult to start. Third, you are told in the manual to disassemble the engine every 10 hours and adjust the valves. If you don't feel comfortable doing that, they suggest paying money to have it done. What?!!! Oh, they also tell you to make sure you replace the valve cover gasket everytime you do this. The engine was anything but smooth running and replacing the line is a real pain. This product just isn't well engineered. Buyer beware as this is an MTD product which does not have a good reputation for quality products or service.