New ergonomic computer task chair, back and arms fully adjustable! - (Athens in Athens, OH

This is an almost brand new chair from SitBetter, model Allseating Presto Mid Back Ergonomic Office Task Chair (http://www.sitbetter.com/view/chair/all-520/allseating-presto--mid-back-ergonomic-office-task-chair/) with two upgrades:
(1) Four-dimensional arms (+$95) - can move the arms inwards and outwards for width adjustment, forwards and backwar