I like it !! Goes well with the buffet/sideboard !! I see what you mean by gap at top back,, its possible that there was a wooden back piece that came off or most likely had the screws stripped and didn`t tighten up any more so it was just taken off !! Wouldn`t have been but a few inches tall !! Look along that back edge and see if there are holes where it would have attached, if not there they may be under the new backboard !!