Here's a couple pictures of the faucet. You can see the hot/cold levers on the left and right side of the faucet. The lever in the center is how you choose between the faucet and the sprayer. When it is vertical, it sends water to the faucet and to use the sprayer you turn it 90 degrees to the left. If you look at the picture of the sprayer, there is a metal ring that you can slide over the handle to keep it depressed and be "hands free." We never use it. Also, the spray comes out in a fan shape which works great for spraying stuff off. It really doesn't flow that much water when you use the sprayer and I like that. However, the faucet puts out a really good flow - which is nice when filling pots. The sink is a Whitehaus WH3018 and is 30" wide by 18" to the back by 10" deep. We really like having one large sink instead of the traditional two. We also purchased the metal grate that goes in the bottom and had to purchase the drain fittings specific to this sink as well (we don't have a garbage disposal but it was an option). We bought it from bluebath.com but it is available many other places. I can't remember where we bought the sprayer from - I think I just kept Googling the model number and went with the best price I could find. As far as cleaning the faucet goes, we just use Clorox wipes. It has some nooks and crannies that take a little work to clean out but it's not too bad at all. The "spring" part at the base of the hose slides up and down so cleaning it is easy (though it really doesn't get that dirty). Again, I highly recommend both the sink and the faucet. Have had no issues with either. I looked around at some of the quasi-commercial faucets from some of the big-name manufacturers and they were way too expensive. I don't know what these faucets cost today but I don't think we spent more than about $300 or so. But it should last us FOREVER.

Love, love, love my MGS progetti Vela D. Stainless steel, pull down spray, and the head does not get too hot to touch. It works beautifully. All our friends love to do the dishes when they come over for dinner!! And customer service is awsome. Eric Goldman is the distributor down in Fl and he's very responsive. Had a slight issue which was immediately resolved. Here is a link that might be useful: MGS Progetti

There's a huge range in price, as you say in sink faucets. Still, there are really good brands and buys at every price level. In theory, price should go up with the amount of brass and integral (meaning real finish not coated) metal used in a faucet. So the heavier the better. Most faucets have some plastic pieces. Certain brands carry a status premium -- Dornbracht, Waterworks. They are excellent quality but you pay plus for styling and name. I personally favor pull downs over side sprayers and pull outs (I have one of each) but that's very personal. As someone said, it's one less hole in the deck. But I'd suggest going to store and do a pull and touch and see what appeals. I have a pull out in our mudroom but found I don't care for the "heavy head". Pull downs tend to have smaller, lighter heads. Some pull downs have a switch to sprayer. There is the lock vs nonlock function on that to check. Some don't mind holding it down for the spray; others want to push the button and have it stay. Check which faucet silhouette appeals. (I pick the same shape over and over but not everyone will). Examine the hoses. On the mid-range and lower end faucets those pull outs will likely be a knit mesh reinforced with some metal. On higher end faucets they are all metal. Also be sure the length of the pull down will reach all around the sink. These can vary a bit. I also pull the specification sheets for every faucet from the mfgr website so I can see how it will work in the space behind the sink -- to see how it opens, how much clearance is needed, to be sure the spout swivel is ok and won't hit anything. That there's clearance for each aspect. A lot of people go for Deltas, Grohe and Kohler faucets. There are KWC fans on the high end plus several others including Rohl. Then there are brands like Chicago Faucet and one Sabjimata recommends (perhaps she'll weigh in here) that are said to be very sturdy and reliable. Someone linked a faucet quality assessment from a builder's website. I don't have it bookmarked but whoever does might link it. Basically it runs through a lot of brands and makes subjective judgments about them. I don't agree with all the categorization and judgments but it's all subjective anyway and there are a large number of brands reviewed so it's a useful place to check.

The comment of support was purely about the pre rinse faucets from places like websturaunt - real ones not designer ones. They have single hole or double hole bases either counter or wall mount then they also have a bracket that screws to the wall that supports the vert. pipe leading to the hose and spray head. Cabinetmakers will build in plenty of support for stone sink. Thanks Paul