Was trying to replace a 13 year old Delta faucet and thought it would be easy to do since both were made by the same company.  The home was built in the 80s so connections were  different back then and we had to purchase an adaptor from Lowe's to finish the installation.  Right now we've got the cold water set up but we're having a hard time removing a part that's required for us to set up the hot water. Husband's afraid of using too much force that might break it completely so unfortunately, I may have to call a professional in.  Other than that, faucet is very sleek, easy to use, strong pressure, love that the pull down connection is magnetized so it sits snugly.  I purchased the gold colored one and would say it's darker finish than expected but still beautiful and modern.   If installation were easier, I'd give it 5 stars.