Topeak are good tools, the chain splitters are excellent seen a fair few other makes break!
I've had my alien for at least 10 years or so, and has all the essential fitments. I quite often use it whilst working on the bike in the garage instead of the main tools in the tool box!
The other thing...
Have an old Topeak Alien Mini that does the job, although the Levo has a nifty multi tool stashed away on the frame.
The alien has a really good chain tool which is a very useful not checked whether the Pro20 has one.