Had an Echo since late 2014 and now several Google Homes. The two are very different. The Echo you have to memorize the commands to use the device as it requires rigid language. The Google Home you can just say things however it pops up in your head.

I think of the Echo as having a command line interface and the Google Home a GUI.

Then the GH is just a lot smarter. Was watching TV the other day with wife and a year recap show with a video of Trump and Billy Bush. Wife asks if Billy Bush is related to George Bush. Just say "hey google is billy related to george" without last names and get a detailed explanation on the relationship. Just not possible with the Echo.

But the best part about the Google Home is it just integrates much better with the iphone than the Echo. My wife clicks her shutter button on her iPhone and without touching an additional button later walks into our family room and ask for fine details in photos and the TV turns itself on, input sets itself and the iPhone photo appears in 4k on the largest screen in our house. We also have a 4k Chromecast and my wife already used Google Photos on her iPhone.

The kicker is how easy to make all of this work. Just buy, plug in and log in and that is it. Google wires it all together for you without you needing to do anything.