We had a Delta spray faucet and it is now gone. I didn't like it at all. Didn't stay put unless I really put it back carefully. Also, with a drilled well and hard water with a lot of iron content the little screen which for some reason was under the sink, clogged up and restricted my water flow severely. DH didn't know about the one under the sink and thought it was just the screen on the end of the faucet. We took it apart several times to clean without success.
I now have a Moen without the spray, which I seldom used and I'm much happier. So, not a fan of spray faucets I guess.