What was your second reaction?
When I finally had one, I thought that I didn't really like it any more than my standard-at-the-time Sausage McMuffin (no egg), but it probably had twice as many calories and fat.
I haven't had a third reaction since Tim Horton's came out with their own breakfast sandwiches.
BTW - I think that'll be my choice for my favourite breakfast: a Tim Horton's sausage and egg breakfast sandwich, accompanied by a coffee and an apple fritter or sour cream glazed donut.