I'm in the middle of an excellent course on Photoshop for Lightroom users by Matt Kloskowski. As he explains some of the tools available he will suggest they are "holdovers". Once a tool has been established at some point in the past, Adobe can't remove it for fear of angering devotees of that tool. The Tone Curve tool is one that Matt suggests is one of those. New tools, or improvements to other tools, have made the Tone Curve less desirable.

Regarding Color and Detail, it varies a lot from image to image. Higher ISOs and lower light produce "color noise" in the shadows. When you look for it, it is obvious. To use the tools, slide them around and see what they do. If not much or you just don't like it, reset that slider.

For those of you who would really like to learn about Lightroom and it's various capabilities, I highly recommend Matt Kosklowski's new 'Ultimate Lightroom Course' which is now available. He breaks things down into manageable bites in his easygoing/informative style. For those who are accomplished in LR, his tidbits and insights to shortcuts and little known capabilities will surely add to your repertoire. It's a must have in my opinion! And yes, his first video module is about the library and cataloguing which is critical in understanding your workflow! :) You won't regret buying it.....

I have been using Win 10 for months, now I have installed the finished product.
I have found no problems as yet everything works fine that includes Edge and Cortana.
There's always will be some one who will look for problems however small.
I am nearly 80 and if I can handle this new OS, anybody can, just get on with it and stop looking for something to criticise just for the sake of it.
Just because it looks different to XP, Vista and W7 there is no need to condemn Win10 out of hand.