I'd have to say yes on this one, BUT...
It's an acquired taste. Like Marmite. Personally I like nearly everything about it. IMHO, I reckon if AmigaOS would adopt some of the features in Magellan it'd be SO much more than it is.
The 1st example that springs to mind is having Magellan setup so that when I double click on the workbench background (ie. Not on an icon) I get a lister (Think of it as a requester only with more control). Using this, I rarely actually open drawers (Not folders ;-)) to run programs making every day use MUCH quicker since icons don't need to be loaded. Things like copying, renaming, moving, loading files & the like just whizz by.
Actually, this is the main thing I'd like AmigaOS to do. The program, Class Action I think, doesn't have the same feel to it. That's more like running a program rather than it feeling like an intergrated part of your system.
Fair enough, this may not be everyones cuppa, but it's just one example. There's enough more.
Aaaaaaaand, I've probably waffled on more than you needed but still ;-)