The games were superior. The controller was a mixed bag. The disc for movement was weird compared to a joy stick - but - it worked fine once you got used to it.
The buttons on the side would hurt your thumb after awhile on shooting games. The big orange masher on the Atari was a real plus.
The over lay system for the number pad was genius and allowed for a lot of cool things - though only utilized fully on some games. (some games it was barely used).