This is an official client developed by Soulseek. Although only nightly builds are available so far, it's easily the best client for Mac already.
Btw, not sure why the requirements on this page say you need to download the QT framework for Mac. I didn't need it, just downloaded the SoulseekQT binary from http://www.slsknet.org/news/node/1
Newest nightly build can be found here : http://www.slsknet.org/news/node/1:)
strong competitor to soulseex. one window interface, familiar to long time soulseek users on ms windows and constant updates with bug fixes and new features. the qt framework is included in the bundle, no need to install it separately. recommended.
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