Sounds like you are not a fan of one of the classics in regards to science fiction. Genres exist for a reason and new ones come about while old ones fade. Asimov was heralded because of the newness of the style of story and world created. It was one of his early works so yes improvement is obviously possible but not all stories are for everyone. Based on what you said stories without strong characters are not going to be enjoyable for you. Chalk it up as a learning experience for you as a reader.