I'm mostly an L.A. freeway commuter, and I have to echo other reviewers who said these tires started out reasonably quiet but gradually got noisier to the point that, in my case, they howled like Super Swamper Mudder Bogger off-road truck tires.
Also, one sidewall developed a blister at just 4,000 miles -- I figured I must have hit a rock or something, and replaced the one damaged tire. Then the same thing happened again at 19,000 miles (on an inside sidewall) although I'd been extra-careful of the sidewalls, so I have to think the sidewalls are especially fragile.
Although the treadwear was even, ride and handling feel (especially turn-in) deteriorated noticeably with these tires as well.
I guess you get what you pay for -- after all, there WERE the cheapest tires Tire Rack had in my size.