I got the pro to help improve my productivity, flexibility and efficiency at work. With the Mako Rotatory case and Think Tank Artificial Intelligence 13" bag, I've got a very powerful, portable, robust and light weight toolbox.
I'm using ArcGIS 10.1 to digitize data in the field in real time (river environments), weather permitting. I have a large number of devices installed outdoors which are collecting data which is stored to SD card. I could service/maintain these with my Toughbook/HP Elitebook, but they're both about to go on the team kit share list as the SP has replaced them. Internet sharing over my Nokia Lumia 920, 4g, I'm permanently linked everywhere I go to our exchange server and team sites, Skydrive and Dropbox. I've re-discovered the power of OneNote with having a stylus and touch screen, which is proving much more efficient (and less intrusive) for taking minutes/notes at meetings without disturbing colleagues. I can also call up any reference material on the fly, and with Office 365, create/maintain anywhere. With a VGA and HDMI adapter, I'm ready to go with presentations and hot desks. For the short time I spend in the office, my go to machine is still a Desktop. The Pro was never intended or expected to be a replacement for that, although, I think it could handle it if needed (type keyboard).
I'm hugely hugely impressed with the SP. It's straight up changed the game, and I'm sure there's even more potential to extract. And to boot, it's very nice to use too. Stylish, classy, great build quality. I tip my hat to Microsoft. I'll be upgrading other essential staff to the SP in the coming weeks.