I have loved my SP3 and sold it in anticipation of getting the SP4. In the meantime, I found a S3 w/ LTE that was for sale locally-at a great price- and bought it. I already have the latest, greatest 15" MBPro- as even thought it might be a little controversial- music, photos and videos are more easily handled for me in the Mac world. For me, the absolutely game charger is inking. Love it. Can't live without it. Can't do it (at least not yet) anywhere near as well on any other platform. As such, I was pleasantly surprised to find that inking is just as easy on the S3 as it is on the SP3. The smaller form factor is also awesome, making the "tablet" side of the S3 actually more usable for me than it was on the SP3. Now, the SP4. First, there are NO compromises between the SP4 keyboard and any notebook keyboard. It is that good. The display is indeed gorgeous. With all of that said... inking with OneNote was for me, the same. Oh, let me mention- they added a flat side to the new pen! . I'm really guessing it's only me, but- I didn't like the feel of the pen- at all. In terms of hardware, etc.- the SP4 is pretty freaking amazing. I think I've decided to keep using my Surface 3. For what I use it for, it is pretty close to perfect.