Perhaps it's just me but I would happily trade in all that gimmickery for a usable file manager on OSX. I don't care for thumbnails.
I think I have tried every finder-addon and replacement under the sun. Nothing comes close to the frictionless and fast experience that (dare I say it) Windows98 Explorer gave me 14 years ago.
However there's a range of tasks where a GUI file manager is just the right tool for the job. I maintain OSX should have a proper file manager, regardless how much Apple wants the Filesystem metaphor to die.