It takes a bit of time to find the perfect adjustment of the office chair. Every day for the first 2-3 days I was changing some tiny bits to ease some discomforts I was feeling, until I finally found the perfect settings that worked for my back. This is actually the strength of this office chair, all those little adjustments will help the chair to fit your back perfectly.
Overall I would definitely recommend this ergonomic office chair as it has good support on your lower back which is important in order to maintain the natural curve of the lumbar spine and lower stress and tension on your back.