This is a great under-sink filtration system. The water is clear and tastes great. It comes with two quick-connect 3/8 lines that make it easy to connect and disconnect the unit from the supply and faucet. This means you can just shut off the supply valve, disconnect the whole unit, and change the filters from the counter-top, then easily put the system back under the sink and quickly reconnect. Love it! No need to crawl and crouch under the sink the whole time.The finish is high quality stainless steel, and comes with a black steel filter wrench for changing the filters, which is a nice touch. It looks beautiful and feels "quality", not cheap plastic.Connecting from the water supply was easy. I chose to split my supply so the main faucet remains unfiltered, and only the separate drinking-water faucet is filtered. I added a dual-valve compression fitting to replace the existing single valve, which has nothing to do with this unit but necessary for my setup. Pretty simple. The supply side to the filter was easy to connect using one of the supply lines with the female connector. The other provided supply line has a male end, for which I had to buy an adapter to convert the 3/8 male line to a 1/4 female so I could connect to my faucet.Check your faucet connection... if the faucet itself is 3/8 female, you're all set. If not, you'll need to purchase an adapter to take 3/8 male to whatever you have.This filter system is very fast! It is just as quick to fill as the main faucet, even when going through the mini faucet. It's amazing how efficient it is. I mainly use it to fill a coffee carafe each morning, and it is such a pleasure vs the trickle coming from the fridge water filler that I was using before.