Not a lot of love for the Embody on this thread. It has been my only chair for the last 10 years and it is amazing. I’ll never use anything else. Aeron just isn’t good enough and I have spent several weeks trying to use the one I have. I know Aeron works for a lot of people, but I could not get it right. As a general compliment to Herman Miller, I had some issues with the arm pads and the arm adjustment at about 9.5 years in. Herman Miller sent someone to my house, redid all the fabric, replaced the pads and chair arm adjustment gear. No charge. They really do stand by their warranties. It’s still going strong. I can’t recommend it enough. I know these chairs are expensive, but if you are going to sit, get the best chair you can. A good one lasts over a decade. You could easily replace a crappy 200-300 chair every few years and have no where near the comfort of this chair.
I admit I have terrible posture at times. When I want to move around I just let it recline freely and slouch about. It can be a little rigid, but I sort of flop around in my chair a lot, especially when reading and thinking. I then end up standing some at my desk, and I do sit correctly a lot too. It works out usually :)