This is an old tool but many teachers I know use it as a speaking assessment. Not a bad idea but I'm using it as CI activity. After typing in the text, students listen to a variety of voices from different Spanish Speaking countries before choosing their favorite. Many had to alter the spelling of their name so it was pronounced correctly. I limited the time to deck-out their character to 10 mintues. The only other paramater I gave was that they had to choose a background that they knew enough Spanish to describe. These avatars will go on each student's blog.