I have a Rohl ORB in the kitchen - it has a living finish, so it's worn over the past 6 years. Doesn't bother me in the least and adds to the charm of our new "old" home. I used RH Bistro ORB in the MBath. They are made by Newport Brass. There is no discoloration whatsoever after the same amount of time. Obviously, not a living finish. We have hard water, but deposits have not been a problem. I just clean weekly and remove any I see building up. The powder room is also by Newport Brass in ORB, no problems there either. This post was edited by allison0704 on Sun, Jan 27, 13 at 7:14

I use watered down white vinegar. If it needs to soak, I cover it with a paper towel and saturate that. It took some of the gloss finish off of the plastic spray thing, though, so only use it on the metal pieces. I think the gloss finish softened up and scrubbed off that piece, but I never had any issues using it on the metal pieces.

I did it and it looks gorgeous. The faucet is on the counter so you see the color against the counter which matches and since the sink is undermount, you don't notice it. All other kitchen hardware is also ORB. Here are a couple of pictures for you to look at:As you can see, my perimiter cabinets & counters are in the cream color scheme while the island and far wall (with refrigerator and pantries) are browns. All of the sinks are SS. It came out gorgeous.

I second paying a visit (or visits) to a really good showroom - NOT Home Depot of the like. There is no way to really get a sense of how stuff actually looks and feels unless you see it in person. Also, the actual finishes vary albeit subtly. If you want a copper finish or some kind, your choices will be limited to fairly high end brands. Copper tends to feel very traditional as a finish. My bathroom fixtures are from Phylrich and are oil rubbed bronze but they do have copper finishes as well. Phylrich My kitchen has a copper farmhouse sink and lots of copper details (copper hood, copper tiles, copper knobs and pulls and copper coved ceiling) but I opted for oil rubbed bronze faucet along with other sink accessories. Mine is a Kohler Artifacts single hole with pull down spray. I looked at various styles on the internet but then went to a showroom in order to check them out in person and I liked the way the Kohler looked and functioned the best.