I have a wonderful Thule 4 bike hitch. Love it, love it, love it. One of the rubber straps broke, and I couldn't find the right replacement part on the website.
If you've read some of my posts, bad customer service really chaps my ass. Really good customer service, is a great thing. Thule wrote the book on customer service. Not only was the chick on the other end of the phone happy, and helpful... when I told her what the problem was, she put it down as a warranty issue and is sending me all new cradles for the bikes. Then she told me that they are tight, to use dishwashing liquid to get the cradles on the bars.
I think I have a new best friend. She went skiing in Vermont this weekend, was impressed that we were still riding here. Its a fabulous thing to have customer service people who use their own products, know them, and know how you use them. I'm pumped.
So if you need a bike rack, buy a Thule. They rock.