I love this small, quiet fireplace for a small wall in my master bedroom.  I love that the curved glass front hides the sides of the firebox.  The heat is sufficient for my master bedroom (150 sq ft), but I'm not sure how it will heat 400 sq ft (it will take a while).  There are 10 colour choices and 5 brightness levels.  It has a cool 3D effect with the logs.  If you are looking for a real-looking flame, then this isn't the fireplace for you.  However, it's not hard to get used to the wonderful ambiance created by this budget-friendly electric fireplace in a cold, Canadian master bedroom.  You'll have to get creative hiding the massive cord (I tucked mine up behind the fireplace) and I recommend anchoring the fireplace into 2-3 wall studs.  The drywall anchors provided are massive and will make huge holes in your walls.