Stormbringer is located in "The Corridor" section of the East Ridge (refer to East Ridge description). It is the second bolted route from the right when facing the crag. Just to the left pulling over the low roof is The Scourge (.11d). First let me say that The Corridor is not an easy place to access. There is a long approach hike just to reach Mickey Mouse followed by a quite a bit more hiking and scrambling through the woods. Stormbringer heads up a nice looking face on fairly good rock. There was quite a bit of lichen on the thing though, and it seemed it hadn't seen an ascent in a while. The climbing is fairly sustained through the crux at the fourth bolt after which it eases considerably to the top. I found the crux to be very reachy (height dependent), and maybe a little stout. Felt like I must have been missing something, though I couldn't seem to discover what.
I didn't do any other routes here, so I can't say whether or not I'd recommend the place to anyone. I get the feeling that the climbing on the main wall is quite a bit better though...like comparing Eldo to Castlewood.