I've played on avatar for almost 1 1/2 years...and I found it addicting (a little too much in fact, as it lowered my grades a bit =P)
anyway, that's not the point.
In the time that I have been here, I've met many nice people. When I was a newbie, there were people there to help me. Yes, there are people on Avatar that aren't newbie-friendly, or aren't friends you'll want to make, but you can always ignore them.
I find the new changes made to Avatar while I played fine. Some I disliked, but I lived with it. It's more of a challenge now, since to many people they could get a huge amount of levels in several days.
Though some people may think the first 151 levels are the only fun parts in the game, I've enjoyed my entire time on Avatar. Trying to reach new goals all the time. Since I have become a lord, I've met something new that I could have fun with.
I also like the rules enforced (on private channels) on Avatar. If there weren't the rules that kind of concern people around my age, like no cussing and such, I probably wouldn't be here and writing this review.
I recommend this MUD to anyone that like company on the mud, and enjoys socializing. Go ahead and give it a try! It can't hurt.