Another bonus is the PowerLock connector. This connection device is far superior to Shimano's stupid drive-and-break-off pin.
After using the nine-speed version for years, which was easy to release without tools, I have struggled with the 10-speed.
The other day I needed to remove a link from the chain on my Canfield. After downsizing from a 32 to 30-tooth chainring, I had a little chain slack when in the highest gear. I tried for 15 minutes to get the link undone to no avail. (Yes, I know what I am doing.) I left the garage pretty angry.
To the bike shop!
Enter the Park MLP-1.2:
Using the tool I had the PowerLock undone, link removed, and chain reassembled in about 90 seconds. Sometimes you just need to fork out a few bucks for the right tool to save yourself a lot of frustration.