The belt and motor are quiet and the heart rate monitor is accurate.

Cons:-The belt moves inconsistently at speeds below 2.5mph

For me the wider belt is more important that other features

It has a defective belt

The belt is very loose and curls up on the side

The belt does not need lubricant and it squeaks on and off

At low speeds, the belt is a little jerky (meaning it slows down, and speeds up causing a slight stumble.)

The belt works fine and all the buttons and programming, just not the incline motor

I was afraid the belt was degrading and would eventually break

I prefer louder music and better speakers, as the belt is about equivalently loud to the speakers when running

Motor seems a little underpowered, belt will slow and speed up ever so slightly with each step.

The first one arrived promptly and was assembled correctly however, while the machine worked well and I loved it, the belt kept sliding to one side and it left a fine black dust on everything