Somebody must like them or there wouldn't be seventeen, but it seems like one of those things everyone hates but it just keeps making money somehow. Really most people don't even like the last couple Frank Herbert Dune novels either. I've read the first three which are considered a trilogy and keep meaning to read the four. I'm not sure the fourth through sixth are considered a "second trilogy" so much as three more books. The first one is one of my favorite books and the next two are worthy.