Buy this chair now! I'm doing to do my best to be as concise as possible and refrain from going on an endless rant about how much I love this chair.What I'm going to do instead is accurately and thoroughly review this marvel of modern engineering. First I'd like to tell you a little bit about myself. I'm a 6 foot tall 250 pound military member with previous surgery on L5S1 which has left me with nerve pain every day of my life as well as problems on three other levels of my spine. Generally chairs aren't designed to seat a person of my stature and won't last very long. I requirea chair that's very sturdy, adjustable and ergonomic.The box came, overjoyed I struggled to lift it into my apartment. The first thing I noticed was the weight of the box. It gave me a sense of assurance in knowing that I bought quality. The Hardware felt to be of good manufacturing. Also I received double the hardware necessary to assemble the chair. I LOVE EXTRA HARDWARE. The instructions were very well illustrated and the chair built in minutes. One thing that I really appreciated was the way adjustments were engineered into the design of the chair. While assembling you can adjust the width of the arm rests. Once the bolts are tightened down your arm rests will only adjust up and down. Another adjustment built into the chairs construction is controlling the distance from the seat to the back rest. This is generally only a feature on higher end chairs and I was happy to see that is has quite a bit of range.The roller blade wheels are amazing! My apartment has tile floor and my old terrible chair struggled to move anywhere, often getting tiny wheels stuck in the grooves of the tile. It generally made navigating chasms of my unorganized room clumsy and difficult. With these rollerblade wheels I can glide from one end of the room to the other. Its effortless, I love it.The mesh feels very comfortable and breathable. The lumbar support is amazing. I nearly fell asleep the moment I sat in this. The lever that allows the chair to tilt back or sit straight up is the kind of lever that you push down or pull up. This is very good because some other chairs have a lever that's essentially a bar that you slide horizontally. Over time the bar can work its way out so when you go to sit back in your chair the lever pops out and the char sends you flying backward. This has happened to me at least fifty or sixty times and I have ended up on the ground as a result of this. The design of the seat back lever of prevents this from happening.This chair is so comfortable that I felt the need to write this review as soon as I sat down. Already my back feels better, my nerve pain is reduced. I had been sitting on a broken chair for over a year and a half until I noticed the amount of discomfort I was ignoring and pulled the trigger on this. I will update this review if anything changes or the chair fails overtime.