Hi Joe (It's Julie from Runs Like a Girl)...
We bought a Pacemaster Pro Elite about 4-5 years ago and it's been a great treadmill. Nice, big belt. Tilts up to 15% grade and goes up to 12 mph (not that I can actually run that fast...). I don't trust the calibration, so I can't speak to its accuracy. I suspect that's an issue with most consumer-grade treadmills.
It's loud at higher speeds, but, again, I don't know that there's such a thing as a quiet treadmill in the $2000 price range. We keep it in the spare bedroom over our garage, so it's not an issue.
We had a problem with the drive belt motor about a year ago, but getting it fixed was straightforward and I think it cost around $150. Otherwise, no issues, aside from the fact that the HRM strap doesn't work anymore (but I use my Garmin's anyway).
One tip: Don't buy from OmniFitness in Scarsdale. Nightmare company to deal with.
Having a treadmill is a real lifesaver when the roads are iced over for weeks at a time. Just make sure you have a place to put that's a) very roomy (they look smaller in the store) and b) not above a room inhabited by other people.
Good luck!