Console is great as a shell aggregator for already built shells. I love the tabs and the customizations available.
It allows for transparency and changing most if not all of the font colors (although the main font color is a little counter intuitive, but as designed and I understand the decision.)
The only down side I have to it is the way in which it grabs text from the underlying consoles where the real work gets done. Its fast and usually very effective, however once in a while it seems to cause a slight pause when trying to grab data from the sub window.
All in all very nice and very handy with the tabs allowing multiple instances of multiple shells, much like any modern console on linux.