I am now running 3.1. Unfortunately, I am using the free version, but I will let you know what I think.

1. I admit that I am a little impatient, but the upgrade process what not documented anywhere. I did not do an exhaustive search, but I looked in the mtmanual.
2. I like the static file structure.
3. I like the templates. I can make a wml template if I like, and I just may do that.
4. I can easily update my style sheet.