Bought a version with i7-6500u, 8gb ram, 512 gb M.2 ssd, lte, WQHD screen. Great! Added another 500 gb 2.5" ssd(for linux) + another 8gb ram. Now it's a mobile beast. I come from a heavy sandy bridge quad core platform, mobility adds much more value but...even though single core performance is greatly improved, fact that it has half the threads available makes me a bit disappointed. I realize that the single core performance cannot replace the physically available cores/threads. If you have lots of cloud services on, note applications, chrome browsers/tabs, development environments you'll see there's no space left for further processing. Nonetheless, very very good laptop.