I would happen to be one of the horror stories.
I believe they do it a little different now though, meaning they make you swallow something BEFORE the pill that will dissolve so if it doess get stuck, it wont obstruct.
Good luck, its not bad, but it sucks carrying around a back pack with wires coming out, people think your the uni-bomber.
I'm gonna merge another post about a pill capsule study(M2A study) so that you can read it also.