I think the one I have is the vision 3. I really like it. Windows open silently as long as you have most of the clasps pre opened. I feel its small for two people. A buddy of mine has sat in it with his teenage daughter and said there was plenty of room for them though. He did have trouble looking out a different window then his daughter and seeing the deer she was shooting at. It has to do with the windows are positioned so there isn't another window behind you to skyline you. Get the curtain kit if you plan to bowhunt out of it. curtains attach with magnets at the top. I feel there should also be magnets at the bottom of the curtains so that if you have a window open on a windy day the other curtains aren't blowing around.