Other than boring suburban photos
looks like what you would expect from average photos. The first seem to have some color finge when zoomed in but thats nothing crazy. Images look sharp, nice colors.
I dont consider my eyes expert eyes, I trust what i shoot and just get a feel for what i like and dont like, as far as technical issues with your gear, I would just get out and shoot a lot in the next whatever your return window is, if in however many days you aren't satisfied, aren't wowed compared to your 60d, or have doubts about if things are working properly, box it all up and start with something else.
I asked a friend, why do you shoot canon over nikon, "i dont know, canon felt more comfortable - in my end results, nikon didn't do it for me" its a feeling and a comfort level. If the new camera didnt do it for you, maybe its fine equipment but you expected more or want something else form your gear.
I understand your probably nervous based on the recent posts of issues, dont let it get to you if it is, get out and enjoy the new gear, if issues develop you will probably recognize it. If they dont and you are always worried, get a new camera. I love cameras new and old, and obsessed the first few hours of receiving my 5dmk3, but after looking at the results of the jpg i shot, im thrilled and really happy with the upgrade.