Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Not good if you have lower back problems
Review: I purchased this chair hoping to strengthen my abs and back to alleviate recurring low back pain. Unfortunately, it has actually made the problem worse. It seemed like a logical thing to do at the time: purchase a chair that's going to give "correct posture" , etc., but it turns out the what's correct posture for one person can be incorrect for someone else. Unfortunately, the Gaiam Balance Ball Chair does not allow for the level of adjustablility needed for me to sit comfortably in an office situation.
