Excellent - Great sound for it's size.
I love this, it's exactly what I need. The fan on my laptop is so loud sometimes that I can't hear films I'm streaming so I wanted a small portable external speaker. I also use it with my phone too. It's unbelievably compact and the sound quality and volume is truly impressive. I love that it's got a full bass and isn't in the slightest bit tinny. The life of the battery is extremely good too. I don't think anyone buying this will be disappointed, I'd highly recommend.
I only wish Play would offer a faster delivery.