I have a set of both.  four echo devices and three gh devices.  For my use, I mainly use alexa.  use gh only as a backup and troubleshooter.  I hate having to say hey google.  just like I hate saying amazon as a wakeup word.  at least with amazon you have several choices. 

I have several devices that does not work with google.  also google tends to be hard of hearing.  I sometimes wonder if it is like me when I am in stores and the clerks keep bothering me - selective hearing (play deaf).

this is not to say google is all bad.  It does have better speakers on their devices.   I like the home hub.  it does not have the ads the alexa version has and it makes a better bedside clock since it does not have  a camera. 

I use the gh as a trouble shooter, at times when alexa says to check connections, I immediately ask gh.  if it does do the command, then the problem is with alexa.   If it also does not work, then it is easier to determine the next stop. 

If you have your own music library, it is easier for alexa to play it than google from your pc.  to be honest, not even sure if google can play a local library.   One thing, gh cannot read your emails while alexa can.  for me, that is very important. 

If you ask a lot of questions, then maybe google home is for you.  but that gets old so if that is the reason you got it, then it will gather dust after a while. 

finally, both devices are constantly being updated, I think you would not go wrong with either.      you can find all kinds of info about both and comparing both doing an online search.   just type alexa vs google home in your search box. 

Occasionally when I ask Alexa to set an alarm, she tells me the amount of time elapsed until the alarm goes off. However, most of the time she simply tells me the time that the alarm will go off.  I have not been able to figure out any rhyme or reason as to why she responds this way.

I have tried asking her the amount of elapsed time, time until next alarm, amount of time to sleep, etc, but none of the requests can get her to tell me the duration. Alexa simply seems to do it at random. I have searched all over the place for something about this, but I can't find anything. Does anyone else notice this phenomena?

I want the echo in my room to do a "good morning" routine just in my room when only spoken in my room.  Thus if I say good morning in a different room/echo it doesn't respond in my room.  Therefor another bedroom can say "good morning" and it only respond in that room and echo device.  I know that it is confined to my echo doing the routine when set up as to where it responds.  Seems ridiculous to have to create a different name for the routine for such a much used phrase. 

I would very much like to know how to remove censorship from my echo dot device. My devices should not dictate my speech. I will choose for myself how I speak and the words I use. It's not for amazon, verizon, the government, nor other people to decide that for me. Also, I watched that video where the kid pre programmed a reply to a particular question and it swore back at him for a full minute, and found it hilarious.

If you feel that you're capable of doing this, it wouldn't be hard to open one up and trace the connections from the multiple mics to the board to determine what you are trying to accomplish.