SIHOODoro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests, Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big and Tall Computer Chair Black

I purchased (2) SIHOO Doro C300 Ergonomic Office Chairs in February 2024. These chairs are extremely comfortable and very easy to assemble. We have had absolutely NO issues with the quality or appearance of these office chairs. We currently have a total of (4) of these office chairs in our small office. I asked around before posting this review and everyone in the office gave these chairs a thumbs up. We may be purchasing these again once our staff increases.

I did some research before buying this chair, and the reviews were on point. It is very comfortable. I like the adjustability. I recently moved to a new place and don't have a couch, so I am also using to watch TV. I recommend it.

I wanted to give this a few months before giving a review. This chair is simply amazing. I'm a large man, so I had to take the side handles off(super easy to leave off). No weird cramping or back problems anymore. I sit in it for at least 6 hours a day

I bought this chair for my son and he absolutely loves it. He says that it actually exceeded all his expectations. He states that it is very comfortable and his favorite feature is the adjustable arm rests.

I like this chair, but I’m disappointed by SIHOO’s misleading marketing approach.My friends and I have used SIHOO chairs in China for years, trusting them for cost-effectiveness and quality. When we come to US, we naturally choose SIHOO again. To my surprise, the overseas C300 model severely compromises the brand’s value.Before buying, we noticed that overseas versions (like the S100 and C300) lack a footrest found in the Chinese versions, but we didn’t know why. Once I received the C300, I still found it comfortable and well-built. However, after reading more on Chinese review videos, I realized the overseas C300 is essentially a downgraded product that conflicts with the SIHOO Doro series’ original concept.Key differences:1. The original version uses a gravity-sensitive tilt mechanism with wire controls, while the overseas version uses simpler pole controls.2. The original has a seat-depth adjustment feature, but the overseas version does not.3. The tilt angle advertised in Chinese official website is 95°–145°, while the English site states 92°–112°, and 110°–130° on Amazon. This discrepancy suggests an inferior tilt mechanism.4. The base is downgraded from a single integrated unit to five separate pieces.In China, the original costs about $220–$250 with free on-site installation — a product more comparable to the $400 overseas C300 Pro (2024.12.8), which offers flip-up armrests and adjustable seat depth, though it remains inferior to the original C300 in terms of tilt mechanism and base.Why did I keep digging reviews after receiving a decent chair? Because the manual doesn't include Chinese, even though it provides English, German, French, Italian, Spanish, Japanese and Arabic! I feel misled by the identical product name. Although regional differences are understandable, the abundance of information on Chinese Internet set my expectations too high. If I had known the overseas C300 was so different, I would have chosen the C300 Pro instead.When considering only the overseas versions, I can hardly recommend SIHOO chairs to my friends because, despite also being made in China, I have no idea where the overseas versions' factory is, what the cost and workmanship are like, so I can't judge the cost-effectiveness. In terms of C300 quality alone, I am 5'6" tall and weigh 155 pounds, and the size of this chair suits me well, with good attention to detail in workmanship.Update on 2024 Dec 28:According to information from the Sihoo customer service team, the C300 model in the US is actually the C100 in China (and it seems to be the C100 Gen 1 instead of Gen 2). And they said they will make certain improvements to some issues mentioned above. In view of the long long email conversations, I believe Sihoo's customer service department treated with their products with care, so I changed the rating.

This is the most unforgiving, uncomfortable office/desk chair I have ever had the displeasure of sitting in. I could only sit in this chair about 20 minutes at a time when it first arrived due to tailbone and lower back pain. I purchased two different cushions to sit on in the chair and can now sit about 35 minutes before the tailbone and lower back pain is so bad I must get out of the chair. I work from home, 8 hours per day, and sit and stand intermittently throughout the day. Unfortunately I did not keep the box the chair arrived in or I would have disassembled it and returned the chair. I purchased this chair based on the reviews and statements that the chair was ergonomic in design and comfortable. I applaud whoever is able to sit comfortably in this chair for any length of time. I have wondered, are the reviews fake? Staged? My old chair I was planning to get rid of is more comfortable than this one. I have bought a new standing desk, monitors, monitor and laptop holders to improve my productivity and comfort. Then there is “the chair”. The purchase of this chair was the last of the money I had to revamp my office so I guess I am stuck with it. After reading this review and you still plan to order this chair, please keep the box and take pictures of all the parts in the box before removing each piece to get it back in the box if you need to return it. It took about 45 minutes to put together. Thank you for your time.

I personally think one chair is hard to meet everyone's tastes. I bought this chair for my family member and he loves it and feels very comfortable. He has a moderate body figure with height about 5ft 8in. However, this chair is a bit large for me to sit in as I'm short. Overall, I'm satisfied with this purchase.

A satisfied purchaser.I felt that my mid-70s computer desk chair was aggravating my back pain, and I started searching for a chair with better back support. I selected this chair and I'm glad I did. My back pain is slowly subsiding. Plus the chair is well made and should provide me years of service.