Flash Furniture Kelista Drafting Chair

I bought this chair for my height adjustable desk (Standing desk). I wanted an office chair that is capable of being raised to a higher level so that I can raise my desk up but still sit in a chair. The chair works for that purpose, but after a few weeks of use I've come to the conclusion that it wasn't worth the investment. The reasons being: - Forward leaning - The seat of the chair seems to be forward leaning, which makes sitting back into it very difficult. When you sit in the chair, you have to constantly adjust yourself so that you don't slide off. It's almost like the chair is pushing you off of it. This becomes extremely evident when you try to use the "ergonomic lumbar support". If you lean your back into the back of the chair, you slide right off. -Lumbar support - As I said above, trying to lean back into the chair causes you to slide off of it. So essentially there is no lumbar support. You have to constantly be leaning forward just to stay seated on the chair. -Flex - There is a lever on the bottom side of the chair to adjust the "flex" of the chair, meaning if you lean back on the chair, it will also lean backwards. I have tried adjusting the lever several times to achieve this, but the chair has absolutely no flex. As I've stated several times, leaning back just causes you to slide out of the chair. Overall, the chair is extremely uncomfortable and remaining seated in the chair is a big challenge. If I knew all of this before purchasing the chair, I would not have purchased it. The chair is so uncomfortable to sit in, that it has quickly turned into a clothes hanger in the corner of my home office. Spend a little extra money and get a chair that's actually comfortable to sit it.