This is a very neat bit torrent client... the 3d visual representation of the swarm and the packets flying around is one of the neatest network tools I've ever seen! It also has some very nice features not to be found on the standard clients. With all that being said though, it's sort of a one-trick pony, and the interface quirkiness makes it extremely diffiicult to use all the time if you're an active torrent user.

Pluses:

- awesome visualization
- ability to set which port it runs on - ALL TORRENT CLIENTS SHOULD HAVE THIS!!!!!
- very rich set of options (aforementioned port, maximum # of uploads, max rate per upload, max overall rate)

Minuses:

- prompts you for where to say the torrent for each and every torrent you click on (no option for folder to save to)
- apple-comma doesn't bring up options, you have to find them in the menus
- managing torrents is very confusing, there is a delete button but after finding that the other buttons don't do what I'd expect them to do, I'm afraid to push it
- no documentation, and interface isn't straightforward enough to get away with this

This is a very cool client, and you really ought to run it a few times to see the packets flying around, but I highly recommend transmission as the easiest-to-use, fastest, and best overall torrent client for the Mac.