I tried your Free version for the first time today and I like it. I will probably buy the professional. I only had one issue with the build - how do I set the upgrade code so that our apps installed previously via MSI built by Visual Studio Installer are upgraded - we don't want both versions to exist. In most MSI installer tools you can set the Upgrade Code to a specific GUID.
Edit:
I figured it out. I was able to edit the .aip file in notepad and change the UpgradeCode. Nice product, simple to use....had a disastrous time trying to make InstallShield Limited Edition build an MSI that worked. This is much nicer.
Thanks!