Try it out in stores before you buy it. It's a unique chair. I enjoy mine. Difficult to assemble??? Nah my wife assembled it without any help in about 20 minutes (I can't recall her ever putting together any other furniture before). If you think this is difficult to assemble I would venture to say that any chair you buy unassembled is going to be "difficult" to assemble. As far as being a cure all for back problems. I'll say it helped mine but not cured them unfortunately. Everything works well on mine and it's been about 6 months since purchase.
Very Uncomfortable Chair and while sitting any length of time the chair will lower to the lowest setting. Have to get up and raise it back up. When you leave and come back to sit down it has lowered all the way again. Also the back adjustment will NOT work...it is either all the way up or all the way back. I do not recommend this chair to anyone. It started after having the chair for less than a month. I called the NMB Staples and they were very rude to me and said there was nothing they could do. I just wanted to exchange it for another chair...but NO ! Gave me the number for customer service and can't get someone there after many attempts. We have bought all of our products computer and chairs from Staples but it may be time to change !!!!
good comfortable chair.support your back very well. but after a few days the lines on the seat rips. They use staples to keep the lines on the chair. worry that the staples will completely break.