I bought an SP3 i7 with the plan to use it to teach my university classes. After 2 days I'm pleased to report many good things and a couple of big frustrations. Inking works great. I mainly ink on mostly blank PowerPoint slides and that has worked flawlessly. Connecting to the projector using the mini-displayport to VGA has worked great. Recording class using Camtasia and a wireless USB mic has worked great. I have had 2 big frustrations, one of which I think I've solved. I haven't been bringing my power cord with me to class. I go to class, set up, teach, and then 2 hours later pack up to head back to my office. On the first day I got back to my office and restarted the machine. It got to the desktop and then froze. I noticed the screen is not at full brightness. After 2 minutes of nothing, I forced a restart. I then got the thermometer display (won't boot). After 5 minutes I was able to boot just fine. I figure that when I get back to my office I should probably give it a few minutes plugged it for the temperature to adjust before starting it back up. That seemed to work OK today. A major headache is what I'm seeing now between my office machine and my SP3 as far as file exchange using OneDrive. I suspect this isn't a OneDrive issue but more of a Windows issue. My inked PPT slides are in a OneDrive folder, so when I get back to my office I give OneDrive some time to sync. Once it has done so, if I try to open the PPT file (I've had this happen with Excel, too), it reports the file as corrupted. If I go to the web interface of OneDrive and download the file manually, it opens just fine. The file is not actually corrupted. Something about the automatic sync of Office files is causing a problem. Various online reports seem to indicate this being caused by some security settings behind the scenes that are flagging the file as potentially problematic because of the automatic update. I've got to try to figure this out or I'm going to go nuts. All in all, I love the SP3.