Ok. Like any modern electric fireplace with a mantel it’s best viewed from straight on. That’s not to say that it looks bad from either side but it looks a lot better when viewed straight on. You can view the fireplace offset by as much as 45 degrees on either side, and the flames will still look good, although they will shift slightly on the position where they appear to burn the logs.
With our electric fireplaces since the flames extend to the front of the logs you actually can see more fire in our fireplace than you can with others where you cannot see the back screen behind the logs because it’s blocked by sheet metal. Our fireplace has a wider viewing angle than other electric fireplaces and will look okay from the sides but better from the front.