You have gotten the right answer in terms of the exit codes, but I just want to add that another way to allow more "interactivity" whilst still suppressing most of the MSI GUI is to allow a modal dialog to be displayed at the end of the install. This is achieved by adding /QN+ to the msiexec.exe command line:
C:\Windows\system32\msiexec.exe /I "C:\test.msi" /QN+
This will make the install run silently, but a modal dialog will be show at the end of the setup telling you that the install completed.
There are many options with regards to suppressing parts of the GUI sequence, and the command lines to achieve this are sometimes confusing. Please check my post here for a tool that can help to demystify the command line syntax by auto generating it with a simple, free tool.