For nicer stuff, Simplicity patterns ALWAYS seem to look pretty crappy.
Some of the dress ones, I've been told, aren't too bad. But, in general, the MacCall ones are a tad better.
Still, I would not use ONE of either for a formal or "nicer" garment.
(I used to work in retail at Hobby Lobby -I HATED working retail- so I learned WAY to much on patterns.)

I have not found a decent Argyle pattern, so I have simply modded (none actually completed in full Argyle-esque style) ones. Thereby, the critical shaping is by someone who know the craft. The CORRECT shaping of a men's jacket is an art unto itself. My sister is a fashion major and just returned from an internship with a high-end New York City designer. She tells me that she wouldn't even ATTEMPT to make a man's jacket, as THAT is a series of courses and a talent/skill unto itself.