I love this fireplace, I just put it together. It took me an hour and 10 minutes, I wasn’t even stressed out. Just follow the directions. It’s very easy. I did put a granite mantle on it, it was on my old one and I just absolutely love it. It gives off nice amount of heat, but I haven’t really used it for any length of time. Like I said, I just put it together today, but the light is really pretty too, very satisfied with my purchase, and even more satisfied that it was easy to put together & I didn’t need any help, there are a couple of screw holes I believe it might be the MM‘s, that did need to be screwed in with a screw gun, because the holes were not pre-drilled, but it went very easily.