Here is a review I found:
http://www.lawnsite.com/showthread.php?t=373877
Honda Trimmer - HHT35SLTA - Mini Review
"Bought one of these this past weekend after doing a ton of research on all the prosumer/commercial trimmers...Stihl, Echo, Shindaiwa, and Husqvarna. Previously used a Husky 125L (predecessor to the 128L). The Husky was total junk and I had continuous problems with it.
Yes the Honda was expensive but I still think it's a tremendous value and well worth the price. It is obvious that Honda put some serious engineering into this product. The motor has TONS of torque to power through some of the toughest weeds without breaking a sweat. It's extremely quiet and in fact, when running at higher rpms, the string makes more noise than the engine itself. At idle it will sit there for long periods of time without me needing to worry about it loading up with fuel/oil like a typical 2 stroke. It actually sounds like one of Honda's small generators.
As several had mentioned the head wasn't the greatest, I went ahead and got the high capacity Echo speed-feed head (do an internet search). This head in itself is amazing as it holds tons of string, and you don't have to take it apart or off of the trimmer to reload with string. Highly recommended!
Pros with this trimmer: tons of power, quiet, no gas/oil mixing, idles great, tons of torque, Honda reliability, great build quality, included shoulder strap and googles, 2 year warranty, can be fitted with brush blade, easy to start.
Cons: slightly heavier than others. This really didn't bother me at all since it's well balanced and comes with a shoulder harness/strap. In fact, I experienced less kickback with hitting rocks and fences, I think due in large part to the additional weight. I trimmed for about 4 straight hours and didn't get fatigued in the slightest. Seems to use more fuel than my old 2 stroke trimmer as I had to fill up about 3-4 times and my old one probably would have only been 2 times, however I'm not sure how the gas capacity of each compares and I expect this one to use less fuel once broken in. Also, the engine on the Honda is considerably larger than my old one (35cc versus 28cc).
If you want a very high quality trimmer that should last years and has less noise and headaches, then this is the trimmer for you. Well worth the premium paid for quality!
"