Re: 455 rancher
I fell into a couple 455s and started using them daily on the tree crews. I figured they would last about six months. To my surprise, they have done very well. Other than one of them being run over by a machine, they have been bulletproof imo. Hassle free cutting everyday for over a year, pretty light with good power. Keep them sharp and they do anything you need out of a ground saw for half the price of a "pro version". I have no interest in another 346 or whatever is available now for $600-700. We have a 372xp for big stuff and 540s in the tree, but the ranchers are work horses right out of the box.
The only downside I see is the lack of easy access fasteners for the air filter etc.