This seems suspicious. Always be wary of people who are trying to sell you something, especially in trading. He claims to have made 10% using the bot and shows you the trades, but due to a high level of randomness in trading, especially in a small sample of ~20 trades it can be blind luck or even something more sinister. Oftentimes, people trying to sell a trading strategy or advice will have several accounts making random trades, and only show the ones that are successful to people they are trying to lure in. Always be wary with this stuff people.