I do remember the ad campaign stressing this as McDonalds for mature, sophisticated adults and definitely not for kids! I was a pre-teen when I had one, and specifically remember the sauce/dressing being terrible, and the ad campaign just being plain silly and stupid
I was 13 when these came out, and I just took the ads as a challenge, promptly had one, and really liked it. I'm bummed they've never brought them back.