Have looked at your model and the Yoga 900, pity they don't have an active digitiser for pen input, or I would be writing this on a Yoga 900

I own 1.2 rMB and very much like it, equally it`s a design statement as much as anything else. The Yoga is a far more versatile and flexible device no pun intended.
Sadly Apple has become completely predictable, next Gen rMBP will very likely just be a scaled up rMB plus or minus a few ports depending on your perspective. This will very much fit with the "new" Apple, "same ideas" repackaged in different sized chassis, with a sprinkle of added "amazing" equally lacklustre and nothing really new, yep making stuff ever smaller, not improving performance or adding features/utility etc. I don't find terribly exciting. Was a time when I had no issue with Apple`s pricing as I always believed that they delivered the very best, no so much these days, with much of the product line being mediocre.
Interesting on the battery life, my own rMB holds up well, however longer runtimes are always desirable, either ways am waiting on WWDC to see what Apple delivers, as I plan to retire two Retina Macbook Pro`s this year and am looking for a consolidated replacement. Am also waiting to see the pen for the 12" Samsung Galaxy Tab Pro once it`s out think I will pick up one if I can source a 256 as I prefer the Samsung over the surface (M3 model only)
Agree there are definitely aspects of W10 that are better than OS X, equally there are aspects that are not. I have one W10 system just to trial software and see if the W10 environment can work for me professionally, so far so good. Microsoft has certainly done a superb good job of optimising the OS to run on low level hardware. Something Apple should think on with OS X becoming ever more bloated to the point that an SSD is almost mandatory...
Q-6