Upload & Sell: On
Two weeks isn't really longer term, but I can offer this: the only surprise the 6D has given me has been a positive one: it is far better at BIF than I expected. Some context here: I've owned 1D2N, 1D3, 1D4, 7D, 5D, & 5D2 bodies. Contrary to expectations and some other's experience, I got decent AF tracking when using the 5D2 center point (but the shutter lag & frame rate made it unusable for certain tasks), and was frustrated by my 7D's erratic performance. I have found the 6D's AF/AI servo performance to be pretty darn good with the 100-400L. Of course the frame rate and center AF-only limitation will prevent it from being a primary action camera; but still, I'm getting good tracking and deadly accurate focus even with the slow 100-400, and combined with the lack of troublesome shutter lag this makes the 6D more versatile than I expected.
But I didn't buy the 6D for action shots. Like you I shoot mostly stationary subjects. Interchangeable focus screens are important to me, & so I passed on the 5D3. The 6D is a companion to my 5D2, and having the stock screen in one body and the EG-S in the other comes in very handy when I need to switch from using fast to slow glass. The wifi is another welcome bonus: it remotely triggers my Yongnuo RF multi-flash setup perfectly via an ipod touch. Also, keeping track of my location when shooting is important to me (I had been using an external GPS unit), and the built in GPS simplifies things there.
Size? Noticeably smaller than the 5D2 and does feel better in my medium sized hands...that's a minor plus for me. Wasn't thrilled about a 97% VF, but that hasn't yet caused any problems. The joystick replacement is a downgrade for sure, but I'm adapting to it. I've grown to like the new magnification arrangement for image playback: using the top dial to increase/decrease viewing size works for me.
I waited for the first price break ($1900 USD shipped) and am satisfied with the 6D from both a pefomance and value standpoint. I'm liking it more as time goes on, and that doesn't always happen for me.