"Cute" is an accurate description for this show, and all the good and bad connotations that come with it. As seen in "Seinfeld", the comic - while no doubt is the heart and soul of the show - brings the least to the table acting-wise. Though Clark was serviceable, he wasn't anything more than "Likable and Naive" for the better part of a season and a half.
The on-going crush on the beautiful friend with a killer personality who is *shock* taken by someone with a more stable foothold on adult life is something a lot of us can connect with personally - and was tastefully done. The likability of "Joy" probably rates a 8.5 out of ten - and the show's attaching it's self to these concepts and advantages made it what it was. A cute - if a little contrived - sitcom that can be enjoyed by the light-hearted in the mood for a laugh with a nice little soul.
It "survived" on it's charm(it had plenty) and the comedy of Clark(who has some great jokes) and certainly deserved a longer run than it had. But "Classic" isn't a word that comes to mind, and did little to set it's self apart from other shows. It really pains me to give this show a 6/10, but it could have been much, much better. Childhood nostalgia will always make it a classic viewing experience for me, though.