We had this Grohe Faucet for almost 10 years, and paid an arm and leg (for a number of reasons including the nonexistence of Amazon). It worked extremely well for five years, and then began to bind when swiveling from side to side. BUT it was the ever popular "intermittent" binding. It would bind for a month, and then it would be smooth as silk. Then it would bind for four or five months.
We finally called Grohe (in Indiana, I believe), and they sent out a rep from 80 miles away. Quote: "I've never seen anything like this before, and I've been with Grohe for 21 years." Oh, great. We're unique again, and we spent [...] bucks for this.
Never fear, Grohe will send out a new faucet and, just in case, new couplings so that you have a second set. If you call a plumber, we'll pay for installation.
We called a plumber. He replaced the old with the new (nothing had changed style or parts-wise), and it was once again smooth as glass.
We recently put in a new counter top, and had the same faucet reinstalled (since the same model still exists), but we used the extra couplings and a new sprayer, and all is well. It's beautiful (well, for a faucet, and primarily in my wife's opinion), but better still, it swivels the complete range of a double-wide single sink without a hitch. We rarely use the spray or the extension, but when we need it, it's got a fantastic range.
At $[...], I'd highly recommend THIS faucet. If you've won the lottery or can believe that the recession has been over for 15 months, then go for it even if it's $[...]. But in any event, I don't think you can go wrong with Grohe.