The beta ran VERY smoothly for me.
Quote from the SoulSeek News Page:
Oh, and a heads up to the more technically minded among you, I just finished implementing a series of changes to the system's decentralized network model. The point of which is to better involve the server in the construction and management of the decentralized network. More specifically, nodes would no longer advertise themselves to the rest of the network when they're capable of taking on children, instead, the server keeps tabs on which client can support how many children and communicates that info to clients in need on a regular basis. This is the first step in making the decentralized network more intelligently constructed and managed using the server. The bottom line is that clients spend considerably less bandwidth on routing messages, and as I keep making the server's network management function smarter, we might also have faster, wider searches. I'm doing some basic testing on the aforementioned changes, after which I'll release a test client for those of you willing to help out.
http://slsk.blogspot.com/slsk140test.exe