I don't think any paid bots are worth the money, think about this. If the bot was so good at making money why would the owners even have to sell it, they could just use the bot themselves and make boatloads of money.
Maybe the owner wants to make additional money from selling the bot, so he sells the bot to the public.
Or maybe the owner cannot win more money, so he decides to sell the bots because he wants to make money.
Using the bot will only make us getting banned from the website, especially if that bots using a cheat to win the game.
I think it's better to use manual than to use the bots because we can limit our money in the games and we know how much money we spent.