I have actually replaced this faucet.  It may have been poorly installed, but it began leaking and I would need to have replaced the cartridge.  I didn't, and instead purchased a different faucet because the pull-out head was difficult to seat back in the arm of the faucet, and it would fall into the sink.  It just didn't work ergonomically for me.  It was hefty and beautiful, and seemed to be good quality, but it just didn't work for me.