Our first ever tie winner for a Best Buy award in the $1000 price range. This is essentially the Commercial 1500 from two years ago updated with a refined console and iFit capability. That was the one shortcoming of the 1500 model but our guess is that Costco will sell a bunch of these again this year. They had a run of bad controllers and when Icon has a parts problem, it is like a giraffe with a sore throat. That, reportedly, has been taken care of.
The Commercial ZS model has just about everything you could want on a treadmill. It has a powerful motor, large belt, and nice creature comforts. They do have to cut corners to get the price below $1000 so don't be unrealistic, but it is amazing that they can sell a treadmill this good for $1000.