It is fine but basic.
See if you can't get this one instead. It is a bit more expensive but it is futureproof. 11-speed is coming and even if you never own 11-speed yourself, you one day become a hero to a damsel in distress with an 11-speed bike.
http://bbbcycling.com/accessories/workshop-tools/BTL-55
The attractive features are:
1) The replaceable anvil - the silver for 11-speed, the black for the rest.
2) Nice bulky handle and long crank.
3) Precise setting through the adjusting collar on the press so that you can do the job eyes-closed.
4) Lockable anvil that keeps the chain in place once it is moved into position so that the pin hits the chain rivet on the bull's eye and prevents misalignment.
Just about any other chain breaker will work, including your Topeak, but tools are not mere utility items, they are to be enjoyed as well. Don't forget to lubricate the screw before using.