The Yoga 2 Pro was arguably the finest convertible Ultrabook money could buy when it launched in late 2013 - and it continues to impress today. It was sleek, packed a best-in-class QHD+ display and could transform into a multitude of positions depending on how you wanted to use it. At $1,099 (£1,099, around AUS$1,254), it was also relatively affordable compared to competing Ultrabooks boasting displays with high pixel densities.On the flip side, its battery life, unwieldy tablet mode and lack of 802.11ac Wi-Fi meant that there was still plenty of room for improvement. By addressing these concerns, I could see Lenovo returning with a smash hit on its hands.