Yes, Logic is a great DAW. Garageband is a cut down version of Logic. But Logic definitely has many more features and tools.
It has a bit of a learning curve, but it is well worth the time spent learning the ins and outs.
I would definitely recommend moving to Logic if you are wanting a more advanced DAW.
Take a look at our Logic 101 tutorial to see what is capable with Logic:
You can also open your already made Garageband projects in Logic, and the pricing is not that bad at all for a top notch DAW.