I had a dispute with Bytronace (bytronace.com) and went to their complaints process. They have an internal team that just defends the company. Then they said I could go to an ombudsman - but the ombudsman they use is industry-funded and rarely rules for the client. The system is rigged.
Pros: No hidden fees|Regular platform improvements
Cons: Account statements could be more detailed|Wait times can be long during peak hours