Well, we've had the shows now for two weeks (we bought three for various rooms).
Irritatingly when you ask her to search google for something she very often gets it wrong, and it's not a simple process of saying "Alexa, ask google to show me ....x......", you have to ask her to open google, then ask her to search then ask her to open etc.....
The sound is reasonable but I did expect it to be richer for the price. There are some minor irritations with the screen in that you cannot turn off the "try asking Alexa to ......" at the bottom of the screen it seems.
Overall, an expensive piece of kit but now that we have them, we'll keep them. Hopefully the software will evolve quickly.......... fingers crossed.