I'm on a business trip and I got to look at a Galaxy Book in a Fairfax, VA Verizon store. I cant talk about performance because I was just clicking through some suff in the store but from a look and feel perspective, it is definately a tablet, much more than the SP4 is. The display looks nice but not having an SP4 sitting side by side or one of my hi res photos to zoom in on I cant tell which is better but the Galaxy book is certainly good. I couldn't actually hold the GB without the keyboard attached because of the way it was alarmed. One thing I'm concerned with is how the keyboard connects. I believe it is a normal USB type connector which may be prone to loosening up and failing but I really couldn't tell. Some of the features I like are the 5000+mah battery with quick charging, Stylus with 4096 pressure points (doesnt really mean much to me) and tilt detection (this does) I certainly prefer it's look and feel over the surface. From recollection only it appears to weigh less than my Note pro 12.2 and feels no bigger. I could see myself using it without the keyboard a lot for leisure stuff. I havent ruled out the SP4 but this visit has convinced me that I should take one for the 14 day trial which I will order when I get home this weekend (tax here, none at home) It does only come with Win 10 Home but I don't think that's any issue for the way I'd use it. The 4gig is though and that's what I'll be monitoring during the trial period. As for the comments about Wifi and LTE. I travel about 40 weeks a year and only my home airport has free wifi, all others have Boingo or the like which require you to sign up. I currently have an LTE line for my Note Pro in suspend with verizon and will reactivate it with this tablet for the trial.