I had a dispute with Wasm (wasmtradc.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: Wide product range|Customizable dashboard|Smooth onboarding|Detailed reporting
Cons: Desktop app not available on Linux