In order of priority, my concerns are: Comfort, Build Quality, Price, Style.
Do you like your chair or do you have any insight into the product category?
Main reason being that I didn't want to spend thousands on a proper chair AND a standing desk and I had started to develop sciatica from my previous chair + desk combo.
For what it's worth, it's definitely helped my sciatica issues, but I am still struggling to maintain a correct posture for my back and I have to take breaks from it.