So far AmazonRapids is working for my kids flawlessly, to date that's 2 months. The service is also worth the cost. My daughter was not a lover of books.. In fact when it was reading time, as a 2nd grader, she treated reading as a punishment and made it a fight EVERY SINGLE TIME.. Books, product labels, any and every thing with words was met with frustration. I came across a deal to try Rapids and saw how much it would be and thought that, because the short stories are set up like threaded text communications, that she might be more inclined to try a little harder and fight a little less. It turns out that was an understated estimate: After a few days, she was asking to read when it wasn't reading time. She's trying out paper books.. She reads product labels and things on the tv such as subtitles. In conclusion, the service is worth it. For strong or less strong readers.