Both of my toddlers are engaged by this video. We don't play cartoons often for them, but this video is the exception. Children don't need state of the art cartoons, and this one is not, adding to the charm. The songs are catchy, and simple.
We have the abcs and 123s as well. All are entertaining. For parents who like educational videos that are exceptional, I would also recommend the Baby Animals series and Baby Know It All series for live action videos, and the There Goes A... series if you have boys, or girls, interested in everyday things.