I have done all the priming and painting already but I've yet to cut it and fit it. I'm assuming I'll have no problems because my house is so new. When I put in my Pergo flooring and installed the shoe base cove stuff, my helper was amazed at how square my house was. He shook his head every day in amazement. I'm hoping that if the bottom of the house is square, the top will be too...if not, I live in a brand new crooked house! I've been reading the "horror" stories about installing crown and frankly, I'm scared to tackle this project now but I'll do it and I'll post a message to say how successful I was.