Early on, I regarded mitre joints as difficult and finicky, so I often used other joinery that I could execute more easily (even dovetails) instead. But once I figured out a good process for making mitre joints, I found them to be no more difficult than other joinery, and certainly quicker than dovetails!
My latest article for the Craftsy blog explains the steps that I take to cut perfect mitre joints, as well as things to watch for that can cause you problems.
Read Cut Perfect Miter Joints in 3 Steps on the Craftsy blog.
Sculptural Woodwork by Chris Wong 
Salut Chris,
Thanks for the link to your article. Mitered frames have always been a challenge for me.
Serge