Complex sentence: Borgo Pass has built themselves a large loyal fan base with their grooving infectious sound and have created quite a buzz in the heavy music scene as a force to be reckoned with now, and for a long time to come.
Split into simpler sentences: Borgo Pass has built themselves a large loyal fan base with their grooving infectious sound. They have also created quite a buzz in the heavy music scene as a force to be reckoned with now, and for a long time to come.