I can't compare it to the Canon but can answer your last 2 questions.
I wear reading glasses but the EVF has a diopter focus and I can see it clearly without my glasses.
All the information is displayed around the edges of the display area in the EVF- (F number, shutter speed, ISO) are at the bottom.
A green dot will appear when focus is achieved.
You can download the manual here http://panasonic.cameratips.com/fz40...ic-fz40-manual
The EVF is a duplicate of what appears on the LCD screen.