My experience with CMB is pretty much like everyone elses experience. Met back to back scammers, and all the ones that liked me had similar profiles of the scammers I had to talk to.
Both are engineers, live in the US, but one is in Cyprus on a contract and the other on a mining ship for the next six weeks.
Always an excuse as to why they cannot video chat, originally from Europe, sick mothers in England, and no siblings, and so on. After my own experiences and reading that others are meeting the same men, I just deleted my account. Good concept, but extremely poor vetting process of the men.