COLAMYErgonomic Mesh Office Chair, High Back Office Chair, Computer Executive Desk Chair with Lumbar Support,Adjustable Headrest and 4D Arms, Slide Seat, Tilt Lock-Darkgrey New

I have a decent amount of experience with ergonomic office chairs. I have a HM Aeron at work, have used a Body Bilt, and also used the low end Ticova.This chair I would put up there with high end chairs. Build quality is good, seat is firm, and the back support is great. The adjustments on this chair are things you don't normally find at this price range.The tension for the backrest is not an issue at all for me. It seems like they addressed this. You go back about 20 degrees with very little resistance, but then after that it takes good effort to go past that (tension at max level)The armrests. I didn't find them too loose, but I also put them facing backwards, so they are there just if I need to recline. I would recommend trying this, as it is a great mod for most chairs. (UPDATE). They get loose after a few days. Kind of annoying.The only cons for me is that the seat feels convex, so you feel like you are sitting on top but not in the chair. I got used to this fairly quickly, but it is worth mentioning. The seat is comfortable however. The only other thing is that the headrest can feel a little loose. This might be a "me" thing as I didn't tighten it down as much as I could have - just a little more that hand tight.Some people complain about the lumbar support digging in, but I did not have this issue. As long as the chair is adjusted properly (seat depth and lumbar support) then this shouldn't be an issue.I mentioned the Ticova, and if you can't afford this, then the Ticova is worth it at that low price range (120ish). The build quality is not near as good, but it has decent back support. The seat depth is small and not adjustable however and it can feel like you are falling out of it.Overall I would highly recommend this chair and I can see it lasting for many years

TLDR;Pros:- Solid build quality & materials- HIGHLY adjustable seat depth, height, recline- Adjustable lumbar & arm rest w/ some issues- Mesh back is very comfortable- Doesn't push into my shoulders like the Leap V2 did (shoulder issues)- Mesh back also keeps me in great posture- Good headrest (my first time using one though)- Solid (but firm) Seat- Doesn't feel like the seat will wear and bottom out for years- Absolutely worth the price in every wayCons:- Headrest takes some strength to adjust- Also, after some breaking in, headrest can accidentally be pushed backward- Elbows sometimes hits the edges of the Backrest (Very hard)- Adjustable lumbar is a hard piece of plastic, so can be quite rough- Arm rests too high, I can't use them if I wanted to (I didn't plan to use them though)- Seat is firm (I like it, but others might not. Probably not fair to have this as a Con)---I was worried buying a cheaper budget chair for the time being, because my used Steelcase Leap V2 was warped and was making my shoulders issues worse. Along with the Leap's seat cushion being constantly bottomed out. I am 5'11", 162 lbs for reference.The Colamy Atlas was surprisingly great for me. AFter all the thing's I've read about cheaper mesh seats. The back rest is really comfortable and supportive. The lumbar support although a bit hard, works well for me for comfort and sitting up right.The high level of adjustability is one of the biggest things about this chair. Seat Depth adjustment is done with a knob right under your left hip, for precise and accurate fine tuning. Seat height, is great (for me) because it goes up a bit slower than my past chairs which helps me set my perfect height.For Back Recline, there is a tension knob to adjust how much strength it takes you to push back the backrest, and a stopper (I'm not sure the term for it) to lock the back rest at a certain level of recline. The small issue I have is that the first level you can lock your back rest at isn't exactly for a posture that sits straight up (closer to a 90 degree angle). But I got around this by setting the recline tension to max, and turn off the recline locking. This works because my natural strength of my back pressing onto the back rest isn't stronger than the tension that this chair provides.The lumbar support is somewhat basic. You can move it up and down, and the lumbar support itself is hard plastic, so I can imagine this be comfortable for some people. The thing is, the higher the tension is, the farther away from the back rest it is. so I have mine around 75%. It supports me, while isn't too harsh on my back. The backrest itself already helps keeps me in good posture. My only issue, is if I'm resting arms completely on my keyboard and move my arms back a little, it hits the side of the backrest, which isn't pleasant if you haven't gotten used to the chair yet.I don't have too much experience with headrests, but I'm overall happy with it. It has 3 points of adjustment, and seems to be adjustable for any position at my height. But I believe after a few weeks, I've already somewhat broken it in. If I stretch and push my head toward the backrest with some force, the backrest tilts back. It's still very useable and great for when I want to give my neck a little rest.I don't often use arm rests, and honestly the arm rests look great, but I had to remove them the very first few hours. The arm rests are too high and too far forward, so they hit my desk and prevent me from getting into my proper seating position. The left arm rest was also way too easy to accidentally move out of place. Build quality looks solid overall though. I already figured I probably wasn't going to use arm rests anymore anyways so this was in no way a dealbreaker.The casters were also perfectly what I wanted. Might not be for others. They were a tad bit harder to move the chair on carpet than the steelcase leap, but that's what I wanted because I wanted to be able to to adjust myself into just the right position without accidentally moving away from it. Freely moving with the casters when I mean to has no issues at all.