We have a dot and I think it is great. I listen to a lot of radio stations and podcasts on it. My current favourite is The Moth Hour podcast on it. I set my morning alarm, have had it play lullaby's for the GD, and set cooking timers. You can ask Alexa to Google things for you, get news and weather updates in a flash. DH likes to ask Alexa: "will I need my umbrella today?" and he gets a short weather update in reply haha!!
As Sar53 says, the sound isn't brilliant for music if you want to play it loud, and I too have a bluetooth speaker which is paired with the dot. This improves things quite a bit.
Another random app you can enable is 'Guard Dog'. Alexa will bark at random times in the day, so that anyone lurking outside thinks there is a dog inside!!
Last weekend, in Rutland, the first statue in Britain of the late Elizabeth II was unveiled.