A plumber installed this faucet as part of a remodel, so I'm not sure of the installation process. It works as advertised from the start. It was a little awkward at first, but within a couple of days the wave got to be natural. I like that the spray function is toggle on/off rather than push to spray. It does seem to be a lower flow than our old faucet. I'm not sure of durability since it's brand new.