Thinking about buying one for my 5 year old son, but it's so much money and it's hard to tell if they're any good or not just by looking at the website. I'm kicking myself that I didn't just get one at Christmas. He has a bedtime story or two at night but isn't always ready to go to bed and I'm considering this as something that might be good for him. If you have one does your child a) like it and b) use it well independently? Thank you!