Been on ICS for about two weeks now, currently running the early Modaco ICS rom. I find it quite a bit more laggy than Gingerbread. I'm guessing this is because of the lack of OpenGL to blame.
Very tempted to go back to Gingerbread but I have found the downgrade guides a bit confusing with all the posts and people offering different ways.
Has anyone got a "simple" tutorial for going back to Gingerbread? I appreciate the cautious approach is needed, backing up the imei etc.