Magrathea is one hell of a MUD.
Let's begin with newbies. When I first logged on to Mag, I had at least 3 helpers jumping to help me be a successful MUDder. All the players are willing to answer questions without playing the game for you. Even when I was around level 200, people would still answer my questions.
Magrathea has a unique tier system which I have seen nowhere else. Instead of advanced classes, they have advanced, unique races such as Klingon, Minbari, and Numenor. This MUD also has a cyborg class which is a first for me as well.
The level cap is 500, which is high, but not impossible to reach. Most high level players range from 400 to 430, with the highest level player currently active being 437.
Role Play is encouraged, but not enforced. The main media of Role Play on Magrathea is through notes, but the gossip channel is also a strictly in character channel. There are experience point bonuses for good RP, and only through this can you get to the exalted level 500.
There are several clans on Magrathea, including Istari, a clan for spellcasters, Sto-Vo-Kor, a clan of honorable fighters, The Band of the Hawk, a band of aclectic individuals who uphold the balance and harmony, the Minions, a group of criminals who practice the arts of extortion, sabotage and murder, and the Loners, a group who choose to act for themselves. Each clan has its own specific RP which is enforced by the IMMs who sponsor it.
The IMMs on Magrathea are strict but friendly, only helping when a player needs it, but never truly intervening. Good deeds are rewarded, bad ones punished.
All in all Magrathea is an enjoyable, newbie-friendly MUD that is both challenging and simple to play on.