I tried for many years to find a decent p2p program for the Mac. I tried LimeWire, Aquisition, Neo, and others, and noticed one thing about them all: even in the two or three times they returned any results from my searches at all, the files they came up with were totally undownloadable. Not one single file came through any of those programs. In near-desperation I decided to give p2p one last chance and I downloaded Poisoned, and found it a godsend. Everything works. Finally!
The only negative things I can say about it is this: I would really like to be able to sort the downloads list by the columns (by name, size, completeness, time to complete, etc.) I've missed that for a while now. Also, it is still rather unstable and buggy. However, it's still in development, so that's to be expected. At least it actually works, which is more than can be said for LimeWire, Aquisition, or Neo.