I was on the original staff for SS way back when (about a year ago, actually, so not really way back when) and helped piece together some of the world. After a few months, I took an extended break from the game, but upon my return I was amazed to see how quickly and seamlessly the implementors were handling the game.

The classless, levelless system is terrific because of its flexibility, but the modifiers that are in (and the ones that are planned) allow for a varied character base. For example, a 'profession' is selected at creation, making a few talents and skills easier to obtain, without limiting character development.

I think the MUD's good for starting, as well. It's not combat or quest oriented, and new players have a fairly easy time jumping into the role-playing. The MUD has a player aid crew, as well as detailed instructions upon creation and useful helpfiles. The staff is resposive and ever-present, making play experience smooth and enjoyable.