I was using my iPad Air2 as my second work computer - taking notes at meetings, working out of the office, second screen while I'm at my desk. I became frustrated with iPad because, even thought I do pretty basic stuff at work, I was often at meeting and had wait until I got back to my desk (like finding emails, revisions to Salesforce contacts or designing reports, or sophisticated Excel edits to name a few). I really considered the new iPad Pro. It is really sweat, insanely fast, wonderful display. But at the end, almost all of my time on the computer was using Word, PowerPoint, Excel, Salesforce, Outlook, with documents stored in filesite (and other related Microsoft services). Pretty boring, I know. But at this point, all of those services just work better on a Mac than an iPad. Even though IOS 11 will close the gap, there is still gap and probably will be one for a little while. There a many things that iPad does better (mocking up pictures; hand written notes) but I really don't do much of that at work. (My iPad almost never left the keyboard case). I do miss the small footprint when I'm using the Mac as a second screen or to use on the sly in meetings. And everyone once in a while I have to show people in a room what's on my screen. But every time I do something on the MacBook that was a drag on my iPad, makes feel good about my choice. For my work use, the MacBook is the perfect ultra mobile laptop.