JJOdin

If you want to see a gogoplata in competition, the Nick Diaz Takanori Gomi fight is a good place to start. You can probably find it at You Tube as well. That's a high level move for sure.

I think that pretty much all of the martial arts, grappling included, can be beneficial depending on the situation you have at hand. You wouldn't want to grapple on the road for any significant length of time, especially from your back (and you wouldn't want to hit the road at all with multiple attackers). By the same token, the guy you might be fighting may be a better striker than you and the surface could be grass, etc. Ground control and positioning- including takedowns- is always important. And I've seen submissions work first hand in real situations. So that's my opinion, for what it's worth.