I was hesitant to purchase this for home use due to the price but I'm glad I did. It's much quieter, more powerful, and solid than any other trimmer I've used. The edger attachment lets me zip through edging much quicker than with the use of my old trimmer. With a light pull on the starter cord, the engine starts right up with a very pleasant (and quiet) thrum. Throttle response and reach of the shaft are great.
Make sure your dealer gives you all the pieces that come with this and any attachments (tools to loosen grease fittings, sling, and a couple others). Mine did not and I didn't realize until I got home and read the instructions.
lt is quite expensive to purchase with attachments; for the $600 I paid for the head unit, the trimmer attachment, and the edger attachment, I could've purchased dedicated 4-cycle edger and trimmer units. However, it sounds like this one will last forever and takes up less space.