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It does give you that extra few megapixels that you really do need, as well as the 1.6 crop factor. This pic has actually been rotated 45 degrees so I did effectively lose maybe 1/3 of the pixels doing that.

The one thing I miss on the 90D compared to the 60D I used to use is the Magic Lantern firmware. There was a feature on that called "Focus Trapping" which was awesome for macro - would fire the shutter at the very moment that the selected part of the image came into focus. It is sort of compensated for with the live view and focus peaking, but it's not the same (plus I rarely use live view cos it's generally impossible to use outdoors)