The audio is clean with a particularly impressive bass response given the size of the speaker

I was actually impressed by the degree of bass response achievable

Has a great sound with a good bass thump for a single speaker.

There are multiple features many users may find useful but are not necessarily intuitive to manipulate and reading it may also serve to disabuse some users of notions like expectations of an illuminated top panel.

I could never get the top panel to light up to see what I was doing

Note that with a single speaker, you lose the stereo effect that you have in an iMac or MacBook Pro but you gain greater volume and frequency range

you want a simple, compact, powerful Bluetooth speaker, the Yamaha MusicCast 20 is a fine choice

It offers Bluetooth audio support, something that neither the Sonos One nor the Apple HomePod offers (though the Amazon Echo and Google Home do)

The volume is incredible - at full volume you can't hold a conversation 20 feet away

Note that with a single speaker, you lose the stereo effect that you have in an iMac or MacBook Pro but you gain greater volume and frequency range

The sound is impressive given the small footprint, but a physical audio port would have been a nice feature that isn't there.

The built-in equalizer is a nice feature, but alas, increasing the bass much past the center-point results in distorted sound

While this speaker is a pain to set up and isn't very user-friendly or intuitive, the sound is definitely worth it

There are multiple features many users may find useful but are not necessarily intuitive to manipulate and reading it may also serve to disabuse some users of notions like expectations of an illuminated top panel.

The sound quality is much better than our stereo speakers, weirdly enough, and it's small enough that it doesn't take up much space at all, which is a big plus because we live in a relatively small apartment

We use this in the evening to listen to music instead of using the stereo in our living room because the sound quality is actually much nicer than our stereo speakers

The sound is very good, and fills my lab of over 50'x100', and has good enough base that music does not sound tinny and carries well even over the hum of the HVAC and lab hoods

Yes, the Yamaha skill can be added however unless the intent is to jump into the Yamaha world with both feet, there’s not much to be gained from the limited functions available via Alexa access.

Unfortunately for non-MusicCast system users like me, the Alexa control is pretty limited.

Bottom line: this is a really great sounding speaker that stands alone well as a bluetooth audio player.

Overall, the app worked flawlessly, and was intuitive

The app allows volume control, and it's touchy - most of the volume slider controls 10% of the volume, while the last 10% of the slider controls most of the volume - so that last bit of the slider goes from low volume to full volume

Their app works very well, and the speaker is easy and satisfying to use.

The power cable is terribly designed - it feels loose even when plugged in all the way and it blocks access to all of these mysterious (largely useless) network/USB/mystery ports

It only has a network port (a curious alternative to its wireless network capabilities), a USB port (labeled "service only"), and a mysterious thin port (purpose unknown, not explained in product manual).