My experience is similar, though tolerable. I researched the replacement for my Droid Turbo (original) and the Edge had most every category covered. Big battery, wireless charging, quick charge (though 2.0, which is good enough), OS upgrade potential, expandable storage, and micro usb, which I'm OK with as I'm not ready to replace my stash
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The 'imperfect' experience with the Edge includes Samsungs attempts to fix what's not broken with Android. S-voice is a joke. The function is nowhere near what Google has accomplished with the voice recognition. I can't imagine that 'Bixby' is going to be any better than 'Assistant'. The Edge has been quirky, losing settings, running slowly, etc... I know, clearing the cache or factory resetting may help..
The Turbo was generally rock solid and the 'Moto Actions' was near perfect, allowing the phone to be awakened hands-free by voice and commands followed accurately. I miss the near stock Android software that Motorola chose to use. I'm not impressed with Lenovo's vision for Motorola and ruled them out..
I haven't found how to set up the edge to allow this function, unless it's on charge which is odd. 'OK Google' works from the lock screen while on charge but doesn't otherwise. Maybe it was locked out by Samsung to encourage their substandard S-Voice.
I'm living with it and hopeful that I'll better learn it's ways.. I'm a little leery about it's durability, being all glass with a protruding screen that is impossible to protect. However, it is a great looking phone.. Take Care