Setting up my wife's now - we got it yesterday. This is her first Windows machine since XP, and she's learning her way around the device. After being in OS X and iOS for so long it is a bit of learning curve coming back to Windows. But I never thought my SP3 would feel huge, but it does after using the S3. I love the form factor on this thing. It's wonderful. And super quiet. Wish it had the magnetic charger. I have to remember to not just nudge it off the charger port, but deliberately remove it. I am not a fan of the relocated volume controls. I cannot "by feel" figure out if the button is power or volume . Minor issue. Other than that, love this. The keyboard and trackpad are fantastic! Surprised it doesn't get more love in the reviews. I don't know Microsoft did it, but they made the first type-cover that feels better than most laptops you can buy and very favorable to a Macbook. Cannot wait to see what they unveil for SP4!