No offense, but yours was a very ignorant comment.  This device is so much more than the Amazon Echo (which I assume you're referring to with the incorrect name "Alexa").  This device is a very high quality, whole room remote controlled speaker, with Siri functionality built in.   

It's the Echo with worlds better sound, and better privacy and security.  It's a more elegant Sonos with better sound, a much better interface and functionality that the Sonos doesn't have.

We don't know everything we will about this product yet, but the early reviews seem to say it's going to be a hit:

https://9to5mac.com/2017/06/06/homepod-review-sound-quality-audio-quality-hifi/