Aside from all that, Echo sounds quite nice as a small Bluetooth speaker. She's also a very nice voice controlled radio with thousands of available stations via the TuneIn Radio app. She accesses 37,000 songs in my own Amazon Cloud library, as well as a million songs included for streaming on Amazon Prime Music. She also supports playlists on iHeartRadio, which is probably superfluous given all the built-in stuff, but it shows the way third-party apps may expand its capabilities going forward. It's very nice for weather and brief news updates on demand from NPR and BBC. Alexa will also read short summaries of Wikipedia topics you ask for, or she can send the full text to the Echo companion app on my iPhone or iPad.
The Echo is small but not intended to be portable -- it sits on a table, plugged in and always on, listening for the activation word "Alexa" to come from anyone within earshot. It's a home and family appliance. I can easily imagine it evolving to a more full-featured control center for everything in an Internet connected house - lights, heat, security, whatever. It's not there yet (and neither is my house), but it feels like a good prototype for this type of thing.
So this is a really fun and sexy product, which I don't truly need since I have iPhone, iPad, Siri, and the ability to use the web almost anytime. But it really feels and sounds like the future when Alexa quickly and accurately responds to a request. She doesn't always get it right, of course, so you will often hear "I didn't understand the question I heard," "I'm usually better with factual requests," and other similar responses.
In this early rollout phase, Amazon is selling the Echo "by invitation only" and is not allowing customer reviews on its website, which seems strange. But there are reviews around the Internet, and I read one last night from the Wall Street Journal. The reviewer unfavorably compares the Echo's "intelligence" with Siri, Google Now, and a similar service from Microsoft.
But I think they are missing the point of Amazon's incremental approach to integrating AI into their products. As a cloud-based service, Echo will naturally improve over time, but for now it's very good in its narrow role as a voice controllable entertainment device, with some bonus features for requesting general information. Even at the list price of $200, it costs about the same as some Bluetooth speakers of similar quality which are nothing but speakers! It is not intended to understand your life or family situation or to engage in general conversation. Yet.