This is not SP3-specific, but the closest existing thread I could find. I'm giving up on my original Surface Pro after ~10 months with it. I've enjoyed my time with it but my main complaints revolve around the weight/thickness making it difficult to comfortably use as a true consumption tablet... I quickly relegated it to my single-device for travel, but I quickly tired of the the awkwardness of using the kickstand+keyboard on even domestic F tray tables, much less in Y. Also, neither Windows or Chrome do a great job with scaling to 1080p on small devices, so Chrome actually looks MUCH better on a lower-resolution display. I held on to the Surface Pro for so long because of the amount of power it packed into its small form factor but I realized I just don't need that kind of power on the road.

I had a Asus T100TA for ~6 months prior to the Surface Pro and had no complaints with it from a usability standpoint for consumption and basic office/email/word/ppt/excel, only with the build-quality (mainly the cheap plastic of the back/body). The revised T100TAM now has an aluminum build, eliminating my only real complaint. The hybrid form factor is much more stable and allows the device to sit further back on a tray-table, and the Atom Z-series devices are much thinner/lighter allowing for much easier one-handed use as a tablet. As such, I'm going back to a better (and cheaper) form factor for both travel and casual consumption, especially since these devices are starting to be a bit more polished in the design & materials department.