We like how the shelves are connected to the mantle. I think we would like a lighter colored wall with darker wood shelving. The hidden TV is nice but I think we prefer a single sliding panel. Large brick chimney feels too imposing.
Great idea for hiding the TV could work in any decor Fireplace or not! A sliding wall above the fireplace (a ventless model from Hearth Cabinet) conceals the television. Hide the TV in a variation on this theme?