Fast, just want Breadcrumbs, and a option to show thumbnails sidebar like windows. Overall the best "nix" file manager and its fast.
I like pcmanfm, so i must say thumbs down. My last version is pcmanfm_0.5.2+svn20091029-1ubuntu3.1_i386, have archived deb package... I agree with Werner, i can not say it better. :(
Version 1.2 has removed the "Open folder as root", that is one of the features i used every day. And there is no option to re-enable it, as people asked in user mailing lists and on launchpad. Losing an important feature in an upgrade, with no replacement is always a symptom of bad design.