For anyone who doesn't want to use Terminal for file system navigation, a Finder replacement is a must. I'm constantly amazed at how terrible Finder is at its (relatively simple) job. Windows Explorer set the bar pretty low though.
There are a number of good Finder alternatives, each with their own perks. I won't steal your thunder here with a list, cause totalfinder is one of my favorites.
Going to trial it now and from the looks of it, I'll also probably be throwing cash at you very shortly. One pain point I find with Finder is that by default when you search, it doesn't search the local folder. Kills usability for me on multiple levels when I have to resort to Terminal.app + find(1).
I bought TotalFinder last week, nice app, I usually uninstall these types of replacement apps after about 5 minutes but i'm very happy - keep up the good work!
The only issue I have with TotalFinder--and I paid for it a while back--is that I would love to have the freeform visor mode, but have it correctly pop above the dock as it does for full-width instead of overlapping it. I know it's in your buglist but thought I'd mention it since you're here...
When I tried it, I was annoyed that new tabs didn't open instantly; it seemed there was a significant delay before it opened. Also, when I had minimized windows and switched between Spaces, sometimes the finder window without the tabs would reappear unminimized, which was really annoying.