As implied by the name, the tool does still have some rough edges and possibly some bugs. However, I consider it to be entirely stable. It is designed to work with OS X Lion and Mountain Lion, though the tool has only undergone extensive testing on the latter and only compiles on that OS X version.
As the below screen will show, the application has a newly revamped preferences window:
The installation window remains largely the same, though it has undergone some cosmetic changes:
Well, there you have it. I look forward to releasing the tool very soon.