A cramped on my ASUS T100 in terms of performance, I can now work much more convenient with sufficient power and a screen large enough both on a hybrid which remains largely transportable. Bonus with the SSD everywhere starting or standby recovery is almost immediate.
From this point of view it's a purchase without regret, including with regard to the pro surface 3 which are beautiful machines, but much more modest at this price level.
However, in terms of ultra mobility this Lenovo Yoga 2 does not win all the tables face more modest hybrid because inevitably heavier, noisier (fan very present), faster and above all a warm away autonomy promises read all testing. 4 hours of HD video playback or 3 hours of practice Lightroom maximum on a new PC, under conditions having said unrestrained in terms of brightness and volume for example max (headphone plug). That's enough to carry on vacation, but in the absence of electrical outlet to keep the ride modest android tablet or in windows up if you have one, they will take longer though you will not be beautiful HD screen on this one.
Note the staggering right amount of software pre-installed and completely dispensable, and the division into 2 partitions on the disk, in my inexplicable sense ...
