They don't have a lot going for them. They have a base speed of 101 which allows them to outspeed all the base 100 speed Pokemon, but that is about it. They have mediocre attack stats and pathetic defenses. If you are using them competitively or for in game battle facilities then I would suggest you avoid them. Otherwise as the old saying goes, "anything works in game".
Please check out my blog/guide to competitive pokemon at pkmntrainercory.blogspot.com