Is crypto OTC trading platform legit?

Hello there, I'm curious about something related to cryptocurrency trading. I've come across a few platforms that offer Over-The-Counter (OTC) trading options for cryptocurrencies, but I'm hesitant to use them. Can you shed some light on whether these crypto OTC trading platforms are legitimate or not? What factors should I consider before deciding to trade on one of these platforms? Also, are there any risks associated with OTC trading that I should be aware of? I'd appreciate your insights on this matter.