This is a very robustly built machine. What really matters in a treadmill are the moving parts, and these perform right on the money. Smooth, strong delivery, large surface area, great speed and incline.
From a running perspective, this machine does exactly what a professional gym treadmill would give you.
Visually, and in terms of the user interface, it delivers you less than a pro treadmill would.
The buttons and the functionality are basic, and about 10 years behind. They do a perfectly adequate job though, and personally, I don't need anything more than what they are capable of!
However, if you covet gadgetry such as a full colour display that shows you landscapes as you run - this is not your machine.
The fan and the speakers are also basic. The fan is just about adequate to make you feel like you're getting a bit extra air. The speakers are just about adequate for sound level and quality. But neither of these are top end, or even mid-range.
Verdict: I'd buy it again. I don't need to pay hundreds (thousands) more for the frills - I'm a runner, not a tech fashionista.