I love it. I've been a Surface user since it's first tablet came out in 2012. I'm currently a Pro 4 user and it's the best device Windows device I've ever had. As far as the new Surface Book, yeah, it's tempting. I absolutely love the bigger 15" one. And yeah, even thought I can buy one right...
Honestly, for me, it has to be the new 7th generation Core processor, then (but most importantly) the long battery life. As a DJ, I want to make sure I have it fully charged, get to a gig, plug in and rock for a few hours.