Gutierrez is a Cuban writer and thus his books are written in Spanish, I know some of the writers on McVoices speak Spanish but some of his books have been translated into English for the non-bilingual of us. I must say that I wish I could speak Spanish so that I could read the books as they were written.
I would say that Gutierrez is the best writer I've came across in a while. His style has been described as dirty realism, my personal favourite kind of realism. His writing is gritty, occasionally shocking and often beautiful and describes life in Cuba during Castro's rule.
His book of short stories entitled The Insatiable Spider Man would be a good place to get a slice of his writing if you want to dip your toe in the water before taking a plunge in his Caribbean writing but for me his novel Dirty Havana Trilogy was more impressive.
There's nothing more exciting than finding a new writer you can really get excited about.