sears had a great sale, and I looked at two treadmills. the cheapest they had in stock, Proform 24853 and this. I wanted to purchase the proform at first, and went in store to see how it was and if it was a good fit for me. I noticed it was really narrow, almost too narrow for me. I saw this 6.7 model right next to it for not much more, and with the deals that were going on, it was a no brainer to get the best I can afford, plus the extra deals on top. 20" belt is just 2" more than the proform, but it feels WAY wider. check for yourself in person, 2" makes a big difference. also this machine has a lifetime frame warranty vs 1 year on other model, and 25 year motor warranty vs 90 days for the proform. treadmill is great, has quick adjust speeds and incline from 1-10 for each setting. also up and down arrows for both incline/decline as well. it HAS A PLACE YOU CAN STORE YOUR TABLET TOO!!! also has two areas for water/keys/phone 1 on each side. item feels very sturdy when put together (took about 2 hours) 1 hour to remove it out of the box by myself, and another to set it up. this this is heavy so get someone to help you move it. 200lbs and box is around 6 feet long by 40inches wide and 16 inches tall. has adjustable dampeners but i dont really move it much. you can fold this treadmill up to save space, it locks into place and has a shock so when you need to drop it down it goes on its own slowly. good feature. and has wheels you can move this by youself when it's holded up. overall very pleased. 20x55 belt is great, 2.6HP motor. can increase incline in 0.5 increments or you can use quick setting (1-10). speed increases by 0.1 and also has quick setting (1-10). has magnetic safety key when not removed will not turn on but will make sound if you push buttons. this model has the same internals as the 6.5 so you can use that for reviews, only difference is the console (upgraded control board area)
Paid to have this assembled. Unfortunately I didn't walk on it while the assembly men were here. Had a chirping squawk when I did walk on it later. Noise got worse with increased speed. Nordic Track wanted me to disassemble it to tell them what part was bad. I told them I wouldn't know if a part was bad and refused to take it apart. Then they wanted a video with sound of me walking on it. Told them I didn't have a way to do that. Then they told me to take the storage bar off--the bar that allows the running bed to be raised and if that didn't fix the problem, then to "just pick my feet up higher when I walked on it". I returned the treadmill at this point before the 30 days were up so I could get a full refund. If Nordic Track would have sent a repair person out to check and fix the problem, I would have kept the unit as I liked its design. But I was not keeping something from a company that does not honor their warranty. Sears was very helpful in giving me the number to call to have the unit picked up. Unfortunately Sears does not handle the repair/warranty work.
I love it! The only thing is they forgot to add the tablet holder piece to the top and it must have been in the box when they took it out. Other than that, very happy!
I read the reviews (for what they are worth...) and bought this Nov 2018. The assembly isn't bad, takes about 90 minutes but you should also have a ratchet wrench on hand. The unit is pretty quiet given it's a treadmill, the controls seem ok and the belt cushioning seems solid as well.
NOTE - When you try to start the treadmill for the first time, it will NOT start...it will just beep at you. What is deceptive, and what NordicTrack doesn't reveal in it's documentation/web site, nor does anyone at Sears know, is that you either have to pay for an IFit subscription to get the treadmill to start OR JUST PRESS AND HOLD THE IFIT BUTTON FOR 10 SECS and it will permanently clear the program block out of memory (you only need to do this the one time, out of the box). You do not need an IFIT subscription to use this treadmill. Because I did not know this upfront, I was so angry trying to start the treadmill that I almost returned it - until I decided to research the issue one more time, and happen to find a review someone posted the day after I bought this which described the over-ride I mentioned above.
I love this treadmill. I went back and forth with treadmills for awhile and could not decide which one to get. I purchased this one and I think I made a great decision. I does exactly what I want it to. The major perk is that it folds up and down easily for me.