The install was very easy. Removing the previous kitchen faucet was the more difficult task. The tool provided by Moen to tighten the nut worked great. I'd seen other review where people had the tool break. Not for me. I then bought my mother a Moen and I installed that for her. I'm a decent handyman, but nothing special. Took just over an hour. The instructions did not mention using plumber's putty, but I did anyway. The faucet looks real nice (especially that handle). Very smooth operation and solid feel to it. I'm very happy with my purchase (from Home Depot).