I’m using it with 2.0.3 and its (generally) working ok for me.
The developer seems good at providing updates and making sure its works with future versions.
He has a blog and answers questions quickly.
The LevelHelper app creates code that you add to your project so even if there is a bug, you have the source code so can fix it (or wait for him to fix).
I got the mac app store version of both but have to wait a while for updates as apple have to approve it.
He does also sell a Pro version which is not through the app store so you get updates when he releases them.
There is some nice functionality on top of the cocos2dx stuff.
You can set up some complex scenes with dynamic and static physics and watch the outcome in the scene tester.
This saves time as you don’t have to rebuild your code and use the IOS sim.