My daughter already loved Barney from video's and TV, so I decided to try and get one for Xmas for her.
I decided on MyBarney, as it seemed like lots of fun to download activities as you got bored of the original ones.
Unfortunately it took a long time before we got to try it, as the website was down for weeks before we managed to get in and download any activities.
Once there, the site is very easily navigated, and once you have chosen an activity to download, you can personalise the activity, so that Barney will say your childs name, remember her/his favorite colour et.c.
Barney comes with a cable that you plug in to the scanner/printer cable, and then to the back of Barney for downloading.
Barney will sing a song, or play a game with your child if you either press on his tummy or squeeze his hand.
We seem to have gotten stuck with the song Twinkle Twinkle, as my daughter will not have him sing anything else. She is nearly 2 and she sings the song without a mistake after having learned it from Barney.

The only negative thing, is that you can only download one activity at a time, so whenever your child is fed up by the one, you need to attach him for another download.