Got the Delta Collins. Easy install. Used silicon underneath base. Lots of high-tech thought in this faucet. Works great. Occasionally, when I shut it off, I get 4 drops of water, then it stops. Pleased with my upgrade. Timing was perfect, as the night before, I turned the Price Pfister on and heard a heavy flow of water, but saw nothing from the faucet. Spray hose blew clean off, making a nice lake under the faucet. Cheers for Delta,