Successful? I wouldn't go so far as to call him that. I used to watch Kyle Bass youtube interviews bc his arguments are interesting. But when I researched his track record, I stopped. It appears, after his win in the 2007/8 CDS crisis, he has been wrong non-stop: his EU short in 2009 went south, his bet on Japan debt bubble burst didn't materialize (losing 61% investor money in the process), and his famous nickel bet became an Internet meme...
He's now betting on HK and China's impending collapse. It could happen, but I wouldn't trust him too much.