Your welcome. I think these days, laptops have started to peak in CPU performance. SSDs have become the norm now that you can buy a 500GB SSD for $150 when they go on sale. 4-8GB is the standard in most laptops.
This leaves the options which separate most laptop buyers.
1. Battery - The U - CPUs have great battery life. Depending on if its paired with a Touch Screen, or 4k display or back-lit keyboard, this battery life will vary.
2. Portability - With ultrabooks weighing 3 lbs. or less, it figures that when picking out a laptop, "how portable does it need to be?". With the Lenovo starting at 5.7 lbs you are looking at a 6-7 lbs. carrying weight real fast. When you compare with my Dell XPS 13 at 2.4 lbs. You start to see the difference in portability. Its more like carrying an iPad then a Laptop, but it has full laptop functionality. I do give up a dedicated GPU for that weight, but thats about it.
3. Dedicated GPU - To me this goes hand in hand with a Laptop that serves primarily as a desktop replacement. As a matter of fact, if you look at some of the design trends with the newer Surface Book type machines, you will see that they basically have detachable screens with the real CPU/GPU/Battery guts remaining on the table and a "light" version of the processor in the screen. Its kind of like having a laptop with a dock that has a monster video card, extra ram and a second processor.
I am glad you are happy with your decision and it seems like you did a lot of research. I had even debated responding to the thread because not knowing the person, it would be hard to steer you in the right direction. I know my wife, and I know how she uses a PC/laptop/netbook/tablet/phone, so I know what kind of laptop she would benefit from.