Believe it or not, the Surface Studio was a gift,  I didn't really pick it out.  Anyway, I picked it up today and am playing around with it.  This is my first post with it.  I'm not sure if I will keep it or not,  I have 30 days to decide. One big issue I foresee is that since it is an all-in-one unit, the CPU is right here at the base of the HUGE monitor.  It makes a little noise which is probably a deal breaker to use it as a DAW PC, especially when the fan turns on. The CPU for the PC I'm using for my DAW now is located in an adjacent room.  Thus, no noise at all. I don't think I will want to record audio into the Surface Studio with it living in the same room.
 
Until this new acquisition, I had a dedicated PC (by Studiocat) that I use for a DAW and Video Editing and a separate office PC for mail, internet browsing, MS Office etc.  It would be great to have one PC that could do it all. But maybe it's just not practical.