I want to buy when found to have various shapes ...... what experience better? Looked at several popular answer, the quality is not high ......
honest this issue, I was quite right to speak, because I own the company bought more than five hundred Aeron Chair, over two hundred of the World Chair. Spent working chair nearly 500 million before buying certainly done a very careful comparison and analysis, at least personally been in a long time compared the Herman Miller, Humanscale, etc. Almost all the big office chair products, my suggestion surely pure extract information online is much more reliable information to say next

I think the difference between a good and bad work chair three key points, 3 points is also usually a general chair completely impossible.

1. handrail
novice easiest way to judge the quality of a chair, is to see the arm of the chair is attached to the seat back or seat on the armrest in the back of the chair is connected, when the back, handrails and people can maintain the same angle of the back, get comfortable arm support.
Pictured Aeron

and almost chair armrest armrests and backrest and armrests attached to the seat back is connected to the connection on the seat cushion, and when the back, seat cushion tilt angle and chairs when the back is the person's waist is inconsistent, resulting in back, arms can not be a very comfortable place.

Pictured IKEA Marcus

armrest structure may not so important on comfort, but they are good or bad test a chair easiest method, because it is sufficient to show that a simple design chair manufacturer's attitude. And from that point on, a lot of answers mentioned in DXRACER racing seat ah, IKEA Marcus ah, are the first step does not pass the chair.

2. When it comes to comfort and lumbar support
chair, the most important should be the lumbar support, the more sensitive the greater the age, I had a young man totally indifferent to the chair, wooden bench without backrest can sit for a long time . Now 30 years old, he began to die back, not really good chair can not hold.
lumbar support that do not appear to be simple and there's no difference, because although many chairs will put a big lumbar support, but to sit up and not feel a thing. In fact, the entire lumbar support may be the most technical content of a chair member, there must be a complex mechanical system is connected with the whole of the chair, of course, the most realistic test methods still rely on their own to take, regardless of a variety of positions, the seat back is able to complete hold wrapped up put back.
additional high point of the Aeron chair, for example before and after lumbar support can be adjusted more easily adjusted to your comfortable position.
picture shows the Y word Aeron lumbar support efforts to tilt the seat back

3.
between different people different weight, the required strength of the seat back inclination is actually not the same. Inclined efforts of ordinary chair is fixed, resulting in underweight people do not go by, then all of a sudden heavy weight people rely on the bottom, not only does not sit easily supporting dropped my feeling also.
and Aeron solution can be finely adjusted by manually tilt efforts, let everyone find their own body weight strength, so each of the Aeron are very tailored to unique sense of sitting habits later, for other chairs are used to sit. But it also brings other problems, such as my chair my wife can not sit completely (by not go). Aeron and this feature is particularly convenient adjustment, it is particularly not suitable for conference rooms, or 24-hour shifts and other customer service needs Substitution sitting on a chair.
From this point of World Chair Humanscale solve better, through clever design allows the seat cushion to withstand the weight of the backrest to be part of the resistance, so that different people can be comfortable experience, so our meeting room and service area selected all World (yes, our customer service is also chair sitting thousands of pieces, and staying up late to work more needs good chair).

other
to Aeron, for example, his functions may be the most complete, armrest height, internal and external adjustable seat forward (for many people is useless) and the like; roller flexibility is much better than Ikea like chair, even if people do not sit on top of the wheels can get a good grip; optional floor wheel easy to use on the wooden floor; breathable mesh material so that long-term use will not feel bored (this point is very long office important, it is easy to mesh back, seat cushion mesh chair is rarely done well, Aeron and World are doing very well at this point)

well, almost that these, had simply wanted to say about those high-Fu handsome chair was good, did not expect to accidentally write so much. Chair this thing really is a penny stock, anyway, I have not found the current price of 1,000 or less in line with my good chair these requirements. If you want to choose, then I recommend World Chair, the cost will be many (more than two thousand) is high, and so does not require complicated setup Aeron (in our company so long the actual use down, many of my colleagues still do not know exactly how the regulation). Home or company people can easily turn to sit.

Pictured our conference room World Chair