I visited a few yesterday, plan to do more today. All were excellent and very creative.
Some things I noted:
I really like the slides that have an additional start piece in case you get bumped to the front door. Not everyone had this so in some of them, I did not finish because I was left at the front entrance.
Some were extremely creative but VERY LONG. After going through many many rooms, I kept thinking "where is the end?"
I really appreciate the entrances in which the owner is there to greet you. I went to several yesterday (including several DIS rooms) and in a few, I was not acknowledged by the owner even though they were there and chatting. Others however were there to welcome everybody and invite them to slide. I thought that was a very nice touch.
All in all, I am imazed and humbled by the creativity of so many people. I can appreciate the time and effort that was put in to creating these rooms and everyone is a winner