The Husqvarna 122HD45 is strong enough to handle its advertised cutting capacity of 4/5 inch, and then some. At a little more than 10 pounds, it's also quite light for a gas trimmer, and anti-vibration dampers make it easy to handle. Owners love its clean cuts and that the exhaust vents forward, away from you; however, there has been a persistent problem with the fuel line that may signal a quality-control issue.
Pro quality for amateur users. If you need to trim lots of large shrubs or long hedges and leave them all with a clean, superb finish, users say the Husqvarna 122HD45 is a great choice. Some professional landscapers even use it as a backup trimmer, although it's actually a residential model. It has a 21.7 cc motor, 18-inch blade and a recommended maximum capacity of 4/5 inch -- although one Amazon.com user cheerfully reports that it takes down anything smaller than 2 inches across.
That said, the 122HD45 is not without its problems -- we see a number of 2013 and early 2014 complaints about a fuel line that goes bad quickly, possibly a quality-control issue.
Easy setup and simple operation. For a gas-powered trimmer, the Husqvarna 122HD45 is a lightweight choice at just over 10 pounds. That makes it relatively easy to move around, and users love that the exhaust vent faces forward instead of back at you -- a major peeve with some gas trimmers. They also say it's very easy to start. "Now I look for any excuse to power it up and have even volunteered to do my neighbors hedge that intrudes on my property," says the same Amazon.com user who uses this trimmer to lop off fairly large branches.
Still kind of noisy. The Husqvarna 122HD45 is advertised as having a low-noise engine, but with a manufacturer's noise rating of 93 decibels, hearing protection is definitely required. The anti-vibration dampers seem to do a good job keeping the vibration down, though, which in turn reduces operator fatigue. The 122HD45's "Smart Start" feature also makes the start-up process relatively simple -- choke, prime, pull and you're done.
About 10 Amazon.com reviewers give the Husqvarna 122HD45 a perfect rating -- 5 stars out of 5 possible. They love that it cuts through relatively thick branches quickly and cleanly, and that the exhaust is vented away from your body.
Review: Husqvarna 122HD45 Hedge Trimmer - 21.7cc, 18in. Blade, Contributors to Amazon.com, As of April 2014
2. Popular Mechanics
In this review, Evan Rothman records the reactions of two professional golf course groomers as they use the Stihl HSA 65, cordless, and the gas Husqvarna 122HD45. The Stihl gets the nod for ease of use, lighter weight and lack of exhaust fumes.
Review: Backyard Battle: Gas vs. Electric Lawn Tools, Evan Rothman, Not dated
More than a dozen reviewers rate the Husqvarna 122HD45 at the manufacturer's website, giving it an average score of slightly higher than 3 stars out of 5. Quite a few say they had to have their fuel/carburetor line replaced sooner than expected.
Review: Husqvarna 122HD45, Contributors to Husqvarna.com, As of April 2014