It's not a problem anyway. If your house is too bad, it won't get better if it is full of Grade 3 furniture, because the furniture will be upgraded to Grade 3 at most. If the initial geomantic omen of your house is looming, then if you have money, just let it go, suggesting that geomantic omen has an impact, so don't worry. If it is suggested that Feng Shui has not changed, you can remove it and put other furniture on it until it has an impact. By the way, too much similar furniture will not affect Feng Shui.