I'm really happy with the sound quality. I had an OLD (using MINI charger...THAT's how old) Monster Clarity speaker in the kitchen so this has replaced that with a whole ton more functionality so I'm VERY happy. I live in about a 1,100 square foot condo and to my surprise Hey Google works from anywhere in here. I had to shut myself in the back bathroom and talk VERY quietly to give an OK Google command to my phone. Which leads to a comment from me...they REALLY need to figure out a better "when" to hand off or come up with a distinct phrase that will not trigger the Google Home. I like using Hey Google for Home, but saying OK Google also activates it. I wish it just didn't then I can decide which to use. Or it better learn real quick when it makes sense NOT to let Google Home handle my request, like when I tried to create a calendar event earlier on my phone, which was intercepted by Google Home and then Google Home promptly told me it couldn't handle that yet. DUH...that's why I was asking my PHONE to do it. Or if I "OK Google show me ...." and Google Home says it can't do that yet. Uh Home will NEVER be able to "show me" anything without a screen so yeah, either make two distinct phrases or make Home a whole lot better at knowing when it should default to letting my phone handle it.
Anyway, thanks to this thread I had no idea I could "cast" to Google Home which means I can now listen to my podcasts (mine are in Podcast Addict so I don't think Home can do that via voice), and I can also stream my own music from my memory card...and while I'm very happy to tell Google Home to play music and have Pandora fire up, I kind of like being able to open the app to see what is playing (name, singer, etc.). So I could see myself even streaming to Google Home via the Pandora app on my phone. I guess that might be a testament to the fact that the speaker really does sound great to me and I agree it gets plenty loud. I love being able to turn it up and down by voice, etc.
I'm VERY excited about Google Home. I happen to have bought into SmartThings YEARS ago when it was a kickstarter and now many years later I have about 70% of my home wired or using plugins and I just LOVE being able to turn lights on and off or dim them, etc. My speaker is so sensitive I can command it from anywhere in my condo, though I do need to speak a little louder when I'm in the bedroom.