Bought on Amazon for $799 when it was on a one day sale with free shipping. Delivered as promised between 12-3pm by Ceva - they placed the box inside the house by the front door. I immediately noticed that the box was quite banged up - made a note of that in the delivery receipt. Pushing it to the gym room on the same floor took some effort - the box is heavy, even though it was tiled flooring the whole way.
Upon unpacking I discovered broken pieces of black plastic, and some of the wooden supporting blocks inside the box (to help protect the insides by maintaining box integrity) had shifted or completely dislocated, and I noticed the damage to the plastic parts, specifically the right foot-rail and the lower back cover. I called support, who called back in a few hours later and were very helpful. Since the damaged parts were external and "non-structural", I proceeded to assemble the unit (knowing I wouldn't have to send it back or have major parts replaced). Support helped me in determining what the parts numbers were for the cracked plastic, and have shipped them already. If I won't be able to figure out how to replace them (looks easy) they'll send a tech over. All under warranty obviously.
Took me 3 hours assemble at a very leisurely pace, with a lunch break. I wish I had some help when installing the console as it's awkward to do by just one person. I recommend 2 people to make it smoother, but I was able to do it myself.
I had ordered the iFIt Live module separately from Amazon for just over a hundred bucks, and got that configured and going in 30 minutes. I have a PC attached to a TV and a wireless router in the gym, and it's kind of cool to see a live view of progress through maps. iFit is a little confusing to configure and use in my opinion, but is truly cool. I suspect that the novelty is going to wear off, especially after the 1-year free membership is over. :)
The treadmill itself is of a good and comfortable size. All seems to work well based on my near zero previous knowledge of treadmills. I like the treadmill a LOT better than the elliptical I have - get more of an endorphine high after a walk or a run on it than I do on the elliptical.
Two potential issues: the inclines are great, but the belt speeds up - I think due to gravity of legs pushing down on it in addition to the motor moving it. That surprised me - at a 15% uphill, speed shows 2.5Mph, and belt reflects that if you keep your feet off the belt and on the foot rails, but the belt speeds up as soon as you start walking on it. All of a sudden you are scrambling uphill like a clumsy fool instead of walking uphill in a controlled manner. Secondly, the belt/motor makes a whining noise which is louder than I expected - I never owned a treadmill before.
Folding up and down seems fairly useful, stable, and smooth. Great for making some room when needed.
Overall - a great deal, and seems to be a treadmill of really good quality - and so far I'd say great support. I am considering getting the extended warranty for 4 years for $149.
I'll update this review if my opinions and experiences change.
UPDATE: Jan 6 2013
Changing from 4 to 5 stars. Still love it, still use it regularly. Did not buy the extended warranty after all - this thing is solid.
Also, a tip on tightening the belt. The manual says tighten it by turning the screws (one on each side on the back) clockwise, half-a-turn, until you are able to lift the edge of the belt at the middle no more than about 2-3 inches. This morning, even though I could NOT lift it more than 2.5 inches, I decided to tighten more, and to my surprise, event after repeated full turns of tightening, the amount I could lift did NOT decrease - it was still about 2.5 inches. I tightened each side FOUR full turns clockwise. Probably could have done more, but decided to stop - and now BOTH my remaining issues are resolved: 1. No more slippage at the highest incline, and 2. The noise made by the belt edge touching the back plastic at one spot on the belt is gone. I wish I had thought of this before. I had stopped tightening a few months ago after only half a turn as I could not lift it more than 2.5 inches, not realizing I could keep tightening and still be able to lift the same amount. After all, lifting the belt edge by hand is not very scientific - I am glad I thought of tightening more and resolved the two issues. Now, the treadmill is flawless! And I just got done with another 60-minute session. :)