We have been using ours for 4 years and finally starting to get in bad shape. We have used it on basic yards and big brush around the fields and woods. The attachments are very convenient. It does feel heavy and would not recommend for a weaker person. It is a little hard to start sometimes, but not too bad. We are pleased and about to buy another one purely for large brush around a farm.
I bought the unit in March of 2017. 2 months later the engine ceased up after about 15 - 20 tanks of gas. I did check the oil each time before I used adding more each time. I also changed the oil three different times hoping to keep the unit in good working order. Lastly the pull start did work the last time. Many times when pulling the cord it would not catch the engine start mechanism. I returned the unit for repair. But because the location I bought the unit from is closing, I could not get a replacement. So I opted for a two stroke model. We will see how that goes.
Bought this style trimmer years ago and again recently. Their both work on the first or second pulls. The string segments that are inserted to the head are easy to create off of a big spool. The attachment function is the best. Always use non-ethanol fuel to prolong the life of the machine.
I purchased this and it was a couple months before I had to use. When I used it the first time it ran less than 10 minutes and then started running very rough. Talked with Sears and they said it was out of warranty to try spark plugs. I have tried about 4 now and they work for 2 or 3 minutes then runs horrible again. Cannot use it or the attachments bought with it due to the main motor. Do not buy this one.