The best... love love love. This was wider than my prior vanity but the space under the sink and the soft close drawers are amazing. My contractor put everything together so I couldn't tell you about any complexities. However, the plumbing did have to get adjusted due to the distance from wall (depth) and offset due to the wider vanity but overall nothing a professional couldn't handle. Its everything I wanted for my powder room. Modern, sleek, and classic.