Had a short play with a 70D last week at a product launch
All taken with the 18-135 EF-s
Jpegs straight out of the camera with no editing of any kind except for resizing for the constraints of the forum and uploaded from facebook.
Inside, no flash
Taken through shop window using on-board pop-up flash.
And some thoughts...
It's pretty difficult to give a proper evaluation as I only had use of it for about 20 minutes add to that, the fact that it was raining fairly hard at times, I didn't want to expose it to the elements as it was essentially a demo model and was the only one the camera shop was getting.
It did get a few spots of rain on it, but nothing to cause any issue or that would test the weather proofing capabilities.
A proper evaluation would need a few days testing in various situations but a few thoughts from the short time I used it...
I liked the feel of it in the hand even and it didn't appear too heavy, although that wouldn't be hard coming from using mainly 1 Series bodies or XXD series with grips.
The body I was using was un-gripped and would no doubt feel even better with a grip attached.
The focus was pretty quick to lock on to the subject and the AI Servo did a stellar job in tracking, albeit the street traffic was moving at only roughly 50kph (30mph).
A really useful addition for the average user is the lock on the program dial to help prevent it accidently getting knocked to a different setting when taking in/out of the camera bag etc, (or if errant kids try to play with it) although this took a little getting used to, but that is just like anything new.
It's easy to use - a simple press of the button to release it and then turn to the desired setting.
The flip out screen is a decent size and clarity and seems to be fairly robust.
However, because of the flip out screen, I don't like the placement of the review and delete buttons which are on the opposite side to most other Canon bodies.
The onboard pop-up flash seemed to do a reasonable job with a half decent recycle time, but it still doesn't compare to an external flash.
The live view facial recognition feature appeared to be fairly spot on, but I'd need to do a proper test to give any really useful feedback on how good it actually is.
Unfortunately I didn't really get to try high ISO or to set any custom functions.
The colour rendition of images is pretty good, especially given that the lens was not a top of the line L Series but the 18-135 EF-s which it comes with.
Although it has a smaller rear scroll wheel than other Canon bodies, it wasn't really noticable and didn't cause any probs with usability.
I didn't get to try the video function so unable to give any thoughts on it.
The final analysis based on the use I had of it...
It's a pretty good piece of kit and I feel those who get it will be pretty happy campers.