Very solid piece. Looks amazing in my living room. Love that you can change the colors , have it running with or without heat. There’s also a timer function as well as a brightness control. My sister and I assembled it in about 2 hours.  Instructions were easy to follow. You can either put the crystals or the log in the fireplace. It comes packed with the log inside. You have to remove the glass to take the foam out so if want the crystals do it during that step. I have the gray color and got it just in time to decorate for Christmas!