I didn't mind some of their older designs, but what on earth is going on with that slanted display?! Blurgh.Never liked any of the weird AK designs and just overpriced audio jewellery really. Look elsewhere for great audio at reasonable price and nice design IMO.
Sony, Fiio & Hiby designs much nicer.
4.4mm any day over 2.5mm balanced (for durability & nice "click" sound)