I have some spinal problems and find this seat very comfortable and sturdy. It gives me the desired support. The arm rests are a real nice option and you can use them or leave them down so you are not stuck with them if they will be in the way. Your body weight holds it down and it really does work well without any kind of hook on the bottom. Now, to address some other buyers comments...1). The odor; yes, at the initial opening of the plastic bag, it has a horribly strong ammonia smell from the synthetic materials. I left it in the garage for a few days and the odor subsided so it's no longer an issue. 2). Width; some complain that it's too narrow. Really? Not for a person of normal size. If it fits you like a thong, perhaps you need to order a treadmill. I'm an athletic 5' 9"/170lbs and I find it just right. If you are a 'wide glide', you can always leave the armrests down. 3). Too big when flat and wearing like a backpack. What is this, the three little bears? First it's too small, then too big. Yeah, it's a bit large and I even chuckled when I opened the box and first saw it, but you can't have it both ways. If you want a seat that's large enough to be comfortable, then it's going to look big when flat. Get over it. People at events will realize the situation and aren't going to look at you like you are a freak. They will probably look at you with envy and wish they had such a comfortable seat to sit on. 4). Durability; Some complained about it breaking and not latching. Well, I'm betting those people didn't read the folding instructions that are sewn onto the seat bottom and just forced the seat until they broke it. I find it to feel quite solid and it works perfectly when you follow the instructions. Bottom line...I'm very happy with it and after sitting in it, my girlfriend wants one too so I'm going to order a second seat. I do have one complaint: it's not made in the USA. I prefer to support US jobs.***UPDATE: After sitting in the chair for about 4 hours at a recent sprint car race, I find the chair to be very, VERY comfortable and it greatly enhanced my event enjoyment as I didn't have a backache to deal with. It dawned on me that the best feature on this chair is the armrests. As you sit in it and prop your elbows on the armrests (which are quite comfortable to use) this helps to keep your posture correct and prevent you from slumping, hence preventing the backache. I will never again get a stadium chair without armrests. This is the key feature for comfort!!! The only issue I've had is that the nylon straps for wearing it on your back are not gripped well by the plastic buckles and the straps have come undone a few times, once causing the chair to fall to the ground while walking. The buckle just doesn't bite into/hold enough tension on the webbing to secure it. Frustrating, but I will easily fix that with 2 safety pins, or perhaps putting snaps or Velcro on the straps to hold them in place. Even with this minor annoyance, I have no regrets over buying this chair and am anxious for the second one to arrive.