Instruct: Classify Amazon reviews into positive or negative sentiment
Query: These rock!

I ordered my Oidz on line a couple of weeks ago and already several of my work colleagues have been asking where to get them. The sound is so unusual, unlike anything I've ever heard. People are so intrigued by them! The cartoon characters add a great fun element that is sure to appeal to kids (and big kids!). Being magnetised, there is also an educational value to them. I especially think that the story that goes along with them is very cute and imaginative. Bound to be a big craze very soon!These are fantastic if you're ever stuck for a gift or stocking filler - they appeal to all ages and are appreciated by everyone I know who's tried them, for their space-age looks and ethereal sound. Give them a go, you'll be so pleased you did, and your friends will all want to know where to get them!!!