They back their customers returns with the amazon guarantee. Prime membership is a hugh bargain when you realize all you get with it. Amazon music alone is worth the price. No shipping unless the seller charges shipping. If you need just a couple things, there's no minimum for free shipping. Plus amazon tv (which iv'e not had time to watch yet). And i love Alexa. Never thought i would like prime or Alexa-turned out they were the best gifts i ever received.