So far the biggest disappointment I have is that in Blogger beta we are not able to edit the HTML. I think this is a vital functionality that is necessary for this new platforms success. If that proves to be the only issue though, and I think they are actively working to add this option, then I see no reason to not make the switch to beta.
If you are interested in this new platform, but are not quite ready to make the leap check back with me. I will keep you updated as I explore new features and test the limits of this new platform.
Update: There is a simple way to add the html code for things like StatCounter, but it’s not the full HTML editor we had in the old Blogger.