I think that p2p platforms are suitable for exchange and not for trading. I mean when you want to exchange one coins for another or fiat, p2p platforms are very good, especially decentralized ones. As for using them for trading, I do not think that it seems like a good idea, especially with the lack of liquidity and the long wait until it finds a buyer.
Personally, I use p2p platforms when I want to convert my coins into fiat. Otherwise, I don’t remember using them.