I don't think so. It learns Crunch like 30 levels later than Sharpedo, which means it might not even learn it until E4 (where it would be great for Phoebe), and it gets no physical STAB so it's inferior to a whole lot of other water-types with decent speed.
Well, Crawdaunt's main advantage is that it comes pretty much instantly evolved (just use a Rare Candy) right before Route 119, and is pretty potent there with double STAB Surf. Then it does average against Winona (Rock Tomb or Ice Beam helps it here), but great against Tate and Liza, what with that nice immunity to Psychic along with Surf, Return and Blizzard. It doesn't do great against Juan and Wallace, but it's great against Sidney (well, except for Cacturne) and Glacia since it can learn Brick Break and resists Ice and Water. IB/Blizzard gives it the typical use against Drake.
I could see it move up past Nosepass at the very least, though I think it's at least better than Pikachu.
Also, it doesn't ever learn Ancientpower, Crunch or Shadow Ball, unfortunately.
There's also a Double-Edge tutor available in Sootopolis, maybe Exploud would have a use for it...