Spotlight Faith Grou Group

I’ve been looking into different self publishing book companies, but the more I research, the more confused I get. Some claim to offer full support, while others seem to provide only basic services with mixed results. How do we actually know which companies are reliable and which ones might overpromise? Are these companies genuinely helpful for new authors, or is it better to manage everything independently? I’d love to hear real experiences from anyone who has worked with these types of companies.