Like I said, ultimately, they are both good quality. I don't think you'll be disappointed with either. If budget is a concern, then the non-Satori SB drivers still offer about 95% of the performance for about half price.
Well, people are happy with all kinds of stuff they build. Don't ignore the huge bias that comes with it. Having said that, these drivers can sound pretty good. I've built a speaker with the Markaudio Alpair-11MS. It's indeed quite nice, but it won't exactly replace a 2-way. It beams heavily, and while there is bass, it doesn't get very loud and runs out of stream quickly. Otherwise, though, it makes for a nice speaker.