I purchased a 2015 13" rMBP from the Apple Store short of 2 weeks ago. Had a 2012 cMBP before. I also have had the opportunity to play with an HP Sceptre X360. I was kind of caught up with the "versatility" of the X360 with it being a 2 in 1. These are only anecdotal observations. The Apple build is solid through and through. The Spectre is solid looking and machined beautifully. I have tried two of the latter though, and both had a rattling touchpad. Makes a tinny noise even when lightly touched. The MBP does not do that. The fan is sometimes quick to react on the Spectre, so it can be more noisy at times. The MBP is mainly quiet. The worst thing I encountered on the Spectre, though, has been the sound quality. I use Boom 2 on my Macs to enhance the sound which it does very well. I could not find a comparable tool for use on the Spectre. The stock speakers on the Apple really sound good - much better than on my 2012 MBP. The Spectre's speakers are tinny and noisy with and without an enhancer that I tried. That, more than the trackpad issue, would be the real deal breaker for me with the Spectre. Grating sound even with good headphones. When I downloaded something on the Spectre, I also got into my anxiety provoking Windows Twilight Zone, with junk ware, and the old nightmare of then trying to get rid of it. Doesn't happen on my Mac. Ouch! Otherwise, apart from an i7 dual core on the Spectre (which actually seems slower than the i5 on the Apple?), the two machines have generally similar specs. Both screens are clear and bright with the Apple still having an edge. The Spectre is also $260 cheaper than the MBP. It looked very tempting, but the glow of it is gone now for me. I'm staying with the MBP.