EASER  Unfortunately, I don't get a sense that these developers are going to do much with this program. I've requested several features, and responses pretty much reflect this. Too bad; I think this program had good potential. I'm going to work with ForkLift, which is showing really good promise in its upcoming beta update.  
(Version 1.0.5)

EASER  I just bought a license for this. I found that it has some very useful features. It didn't seem immediately intuitive, although it didn't require a steep learning curve, either. Once I started to play with it, though, I found it very handy. It doesn't have every bell and whistle that the Finder or PathFinder might have. But for the price, it does file management pretty well. In many ways, I've found it to be faster at some tasks than either of those programs. Good customer support as well.  
(Version 1.0.2)

MACLOVER1.1  This has a flyover mode, meaning you do not need to click to dig deeper into your folders one after the other. Also you cannot inadvertently move a file or folder while navigating... which does happen in the finder AND it goes fullscreen with megazoom for a cleaner finder experience. I like it !  
(Version 1.0)

OSXFACTOR  Am I missing something? This looks like a carbon copy of the old Next Workspace manager. Not sure why you would need this when you can just switch to column view in the Finder and get the same behavior....  
(Version 1.0)