Bad:
* As said previously, it's "Limited Edition", which means it's a reproduction and not original in the literal sense of the word.
* If possible, you want the original sketch/drawing to go with the Cel. You won't get it here.
* I'm not sure how memorable Johnny and Scooby are when compared to Disney/WB classics and the like.

Good:
* There's only 150 made.
* It's Signed.
* Johnny Bravo AND Scooby Doo?! How can you go wrong?

Regardless of the above, it's not like you can haggle for a price, so if you have the money and it's worth it to you, go for it!