Maybe I am worrying about nothing. I read a thread on here (that I can't find now) about someone having to replace their SP3 and if they would have backed up their image to the micro sd it would have saved them a bunch of headache. I have never worried much about backing my computers up to another drive, but figured since I had the micro sd drive I might just give it a shot. I'm not sure I understand the point if the image just takes you back to factory settings. Doesn't a full restore of the system do that anyway? I'm confused.....
Maybe I don't need to worry after all?
The point of the generic Recovery drive that you make from within Windows, is so that you can have a recovery method on-hand. Also, some people prefer to delete the recovery partition from their SSD after they make the recovery USB drive, thereby freeing up the 9 or 10GB or whatever it is.
So the built-in Recovery USB utility is to get you back in business if Windows ever gets too hosed to be usable. You could also use it for just doing a clean install.
There is a way however that you can make an "image" file of your current installation, and it would include everything as-is-- your folders, files, software, everything, just as it now. Macrium is the software I'd use for that. You would install the software, and then use it to make an image of your SP3, and it would put that image on a USB flash drive, hard drive, etc. Some people do this once a week, once a month, etc. I do it on my own systems every time I'm about to make a major change, or install software I'm not 100% sure about. Of course if you use your SP3 a lot and are always making changes, then it won't be long before the image you last made is out of date. So you have to ask yourself, if my SP3 goes up in flames and I have to recover from an image, how far back am I willing to go?
So TL;DR- The built in utility gets you back to factory. Which is nice. But you would use a utility like Macrium to make a custom image, that would get you back in business, exactly as your SP3 was the moment you made the image.
Hope it helps.