I like how easy it is to use, and it's nice that it's customizable for all kinds of different audiences. I don't think I've had any issues with Raptivity yet. The only thing about this program that I dislike is the fact that there aren't many options when it comes to sharing your creations with others. It would be great if there were more ways to share content with other people, especially since our school has so many students! There are a lot of free programs out there, but I believe that Raptivity offers one of the best experiences. We're able to customize our lessons in a way that we couldn't do with other software.