A bit disappointed.  This definitely looks like glowing embers.  No "flicker" .   The LED light glows and dims.  Repeats.  The crackling sound effect is hilarious.  Sounds like dropping metal utensils and pans. We will simply keep the sound effect off.  The unit itself is good looking and of solid  quality.  Front and back are finished for two sided fireplaces!!  Quick ship and love buying from Wayfair.