i have seen a bunch but none of them could keep performing well since they aren't really "AI", they are just predefined scripts that perform the same action based on a bunch of conditions that were hardcoded by the developer and since the altcoin market is extremely unpredictable they always end up "confused" and lose you a lot of money. all is needed is a simple dump or even a pump to screw with the bot completely.
Using a bot in trading? I'd rather make myself better in trading that use a trading bot.
Trading bot is not that effective in any situation especially if we know that the market is not that stable. Your strategies should depend on your technical analysis in the market, you are the one who are responsible for the result of your trading that's why you should not rely on a trading bot. I already used a trading bot before but I don't find it really effective when I want a huge profit in trading, it just increase more risks for me. But I suggest you to try Gekko, that's a good trading bot that you can try. Just be careful on using it and always check it so that you will not have a huge losses. Failure and losses are unpredictable in a volatile market.
Rightly said @AniviaBtc trading bots are not my thing especially when it comes to trading. I understand that people want quick money but in my opinion I'd rather carry the responsibility of loss myself rather than a bot which could much quickly lead to a loss.
Unlike a human the bots at the moment only train and recognise certain parameters, they're not adaptable and trading is all about adaptability.