This is a great little treadmill for inside. I have a Nordic Trac that is a "full size" treadmill outside in our gym. That thing is huge, clunky, heavy, and SO hard to move or fold up. It is great for running or an intense workout, though. I set this "mid size" treadmill up in my living room so that whenever I can walk, I walk. Binge watching a t.v. show with hubby? Walk. Listening to music? Walk. Sitting on butt all day and fitbit says "get up"? Walk. I LOVE that it is always right in front of me; no excuses. For reference, I am female and 5'3" and my husband is 5'9". We can both walk comfortably on this. I have no idea why some reviews are stating that this is for a "kid" or just plain tiny. It is a perfect MID size. I have chronic pain and the ease of folding it down and up is amazing. The Nordic Trac takes a lot of my muscle to set on the ground or push it up to fold up. This one has a mechanism in which it slowly lowers the track to the ground on its own! Folding it up for storage is so easy! The track barely weighs anything so folding it up and putting it away is easy. It rolls easily because it is lightweight (about 120 pounds less than Nordic). The speed goes from .5 to 10 and after reading a ton of reviews to decide on a treadmill I realized that number is arbitrary. Some say they go to 10 and that means you are still walking, literally. This one is power walking at 4 and running FAST (I can't do it) at level 10. The INCLINE: I wanted to let people know this let me down, just a tad. I did want an incline. The 3 manual adjustments it shows are actually bringing it up from an extremely minor incline to flat. This treadmill is also not flimsy. It is sturdy enough that on high pain days I can rest my weight on the handles and front. The width and length of the tread is more than enough, unless you are 6' and up and weigh 300 pounds. I am stating this because many reviews said it was short, childlike, and so thin they couldn't keep steady. All in all, for the cost ratio compared to a "mini" treadmill or "large", this is definitely worth it and does the trick!