Very comfy (sitting on it as I am writing this). Slightly a wrestling match to assemble on your own, so best off having someone to help, if possible. Pretty straight forward however. 

Good position for the back (I am 5ft5) Great for studio use (design / music) where you may be using dual screens and referencing audio. definitely an upgrade from previous computer chairs that I have owned. Quite large, so make sure you bare your space in mind. 
Good height from the floor when at its lowest and mostly promotes good posture, despite being pretty squidgy. I would recommend this item.