I checked it out, looks like it has some potential but is too experimental right now. May be OK in a few months.
pcmanfm also crashes sometimes when I try to open very large directories.
I found a couple of light fast file managers that I can use until pcmanfm gets fixed. They don't have all the features I want but are very usable.
gnome-commander works very well. It functions similarly to Midnight Commander (mc), an ncurses file manager that I am familiar with. g-c is very fast.
mucommander (it is not in the Sabayon database but it is a Java program so you need Java installed, just download it http://www.mucommander.com/download/mucommander-0_8_5.tar.gz
, untar it and run the shell script). It is light fast and works well. It has a more modern feel to it than gnome-commander. I had to make one tweak to get double clicking to work.
Adjust double click timing:
echo '*.multiClickTime: 500' > ~/.Xdefaults
xrdb -merge ~/.Xdefaults
These file managers both have one feature pcmanfm does not have, they can compare and synchronize directories.