When I first saw this show listed on my TV guide I was surprised. Hoping it would be somewhat entertaining as What's New Scooby-Doo had seemed to stop airing I gave it a shot.
I was surprised to say the least. First off, the animation is nothing like any Scooby-Doo show made before. As another reviwer mentioned it can be an eyesore before you get used to the style. Additionally, only Shaggy and Scooby take the stage for the majority of the show. However the one shocker that I was not ready for was that Kasey Kasem is not the voice of Shaggy, a possible first. But, though I'm not sure why, I learned through Wikipedia that he voices Shaggy's uncle who appears every so often, frequently sending the duo messages via the butler robot. (Odd trivia: Kasem's wife, Jean, voices 'Cat Lady' on the show. Go figure.)
Ideally I would not have been satisfied with the setup for this show but ultimately I found that while not fluid with the other shows, even the childish-but-funny A Pup Named Scooby-Doo, it is still entertaining. On top of that, with very few good shows on Saturday mornings now and MANY of those recycled animes with repetitive plots and subpar dubbing I find that this one is not that bad, even when compared to shows from ten years ago.
On a side note, Frank Welker does provide the voice Scooby-Doo, a task he has performed well ever since Don Messick (the original voice from 1969). He also does Fred Jones (when present), a role he has held since the origin of the characters in Scooby-Doo, Where Are You? Mindy Cohn returns as Velma Dinkley, and Grey DeLisle reprises her role as Daphne Blake (Both for infrequent appearances, but still present). Both have held the roles of their characters for many years as well, Grey Delisle a very succesful VA in her own standing.
Shaggy & Scooby-Doo Get A Clue is an above average show, but not spectacular. For parents I'd say there is hardly anthing to worry about. Violnce is minimal, and always slap-stick. An all around enjooyable half hour for any kid.