I think in the beginning of this show everyone was horrified at the prospect of putting an MTV twist on a sorority. It was a given that some of the people who pledged would not have gone through the efffort if it wasnt for the cameras. From the commentaries given by Mara and Jordan on mtv.com - they said the editing was accurate. The only thing not shown was that they actually went to class and studied etc.
I do want to say that the sisters of Sigma did do some things that were positive for the Greek system. In my opinion they really squashed the idea that some people still have - that if you are in a sorority - you are drunk all the time - and you sleep around. Whenever the cameras were out on the town with everyone, the sisters were dressed appropriately, they were not intoxicated, and they really were shown having fun with their sisters. The pledges on the other hand were the ones getting drunk and dancing in a way that really wasnt tasteful outside a strip club
The sisters also demonstrated a lot of class - and I think represented their house well. Of course there were some bad apples who appeared on camera to be jealous and hateful - but the majority of girls did seem to be great.
All in all I think the ladies of Sigma did a good job in showing the world another side of sororities - and if it hadnt been for a few bad sisters, and a few more bad pledges - this whole thing would have been very successful
On the last episode - I was not surprised about Jordan - however I was very shocked that Mara dropped. I am disappointed that they did it in the middle of dinner before initiation - but it appeared that nobodys evening was ruined.