Number one would have to be the fat content in a burger and fries. This is just too much fat for anyone over 40 years of age. Leave McDonalds to the youngsters & familys with young kids.
Number two would be the uncleanliness that I find terrible lately when traveling. In Pennsylvania, Ohio and West Virginia when my husband stops for coffee, I usually use the rest room. From over flowing toilets to no soap or towels in the rest rooms, just not user friendly. In one restaurant when in line my shoes were sticking to the floor it was so dirty. I told the girl behind the counter about it & her answer was SO. Just SO with a shrug of the shoulder. I dont believe that she was one of the commercial types that McDonalds likes to say works there.
Okay McDonalds its time to clean up your act...