Right now, when you create the mirror, you specify a temp file share for it to copy files to. It would be nice if it cleaned up those files when it was done with them.
Right now, these can only be installed if Visual C++ version is exactly 11.0.50727. If it's a newer version, these tools will not install. It would be nice if it supported 11.0.50727 as a minimum build, not a required build.
It would be nice if you could run the certificate wizard and generate a request to be sent to your public CA. It would be much easier than going through a manual request - especially in environments with many SIP domains.
It would be nice if it was possible to define the non-standard paths in topology builder instead of a more complex PowerShell method, such as http://technet.microsoft.com/en-us/library/gg398832.aspx