I am not a fan of sit-coms. Most of them I find silly or stupid. Maybe it is my age. But I find the humor to be forced and usually at the expense of one of the cast members. I really do not like humor based on someone's stupidity.
So when I channel surf and come across something that is watchable, I check it out. I mentioned to my wife about this, so we decided, for our summer viewing, to get season one.
We find it very funny. It is not based on anyone's stupidity, but on the differences between the characters.
Charlie Sheen does a great job and Cryer is his foil.
Whatever else goes on off screen is irrelevant. The show is funny.