Andrea,
I used Ace for one of my apps, and it is good. Chris at Develphant does a great job creating these tools and does a great job on his video tutorials.
However, I think he was experiencing some extensive health issue, last I heard several months back. Since then I have not heard from him, or seen any posts on the forum here from him. I am concerned, having not heard from him.
Although (Ace) is a great tool, I am hesitant to use it for any more of my apps, because I am not sure if Chris is feeling well enough to support any issues that might pop-up.
I am truly hoping his health is improving. He has always been one of the pillars in the Corona community, and a great asset to the community.
Best of luck to you!
Bob