Husky does one thing that seems to sneak up and bite people on the ass, and that's the single nut and bolt design. Throw in the smooth paint under the nut, a bit of vibration, heat cycling, in if you aren't paying attention, your chain will loosen, and bad things will happen.
Was getting mower parts down at the angry beaver mower shop, and ran into this old man with a Husq 445 in a box who was ranting and raving. Seems his chain got loose, and in the process, it bent up the chain so it wouldn't fit in the groove.
The gist of the rant was that his Stihl never did that, and his chainsaw had less than 5 hours on it, and was now messed up.
Well, not so much. His chain was tore up, and that was about it. And of course, he was old, so telling him he needed to tighten the nut half a dozen times in an hour would have just made him nuts.
Kinda funny, until you forget, your bar starts to weeble wobble. Whoops!
At that point I got annoyed enough to break out the dremel and enhance the traction under the nut. Of course, a piece of sandpaper and about 2 minutes would do the same job, or a thin lock washer, all sorts of things.
Other than that, and needing to run thinner bar and chain oil for good lubrication, no serious flaws. Oh, and the standard air filter that comes with em, you can't clean that out worth a damn. Dial the air compressor up to 150, hot water/soap, nah, just kinda ******. The air filter that comes in the box of replacement parts (oil, spark plug, fuel filter, oil filter) works much much better. Had no problem with the thing getting hot and flooding out after changing that one.