Bitcoin Forum

First, I would like to understand better how they work, anyone has a good recommendation?

Which one is the easiest one to use? I found this one: Haasbot 2.0, but it seems a little complicated , and another thing is that I don't understand how they charge, and I am kind of skeptical about scams.

Either which trading bot you would use up,you wont really able to understand it on how to use it when you dont have sufficient knowledge. There are free trading bots i have Tried Gunbot. Its quiet complicated but if you are already aware on the terminologies on trading you would able to set-it up with ease.The hardship do only occurs when you dont have any idea at all towards trading and the terms.

Most will charge either a flat fee or some sort of commission, read in to their terms and I'm sure you can find that out for yourself. As to how they work, it depends entirely on the bot, you'll define certain criteria and they'll work within them, how customizable they are again depends on which bot you use. As Manhanton said, if you aren't familiar with trading yourself, don't use a bot.

where announcement thread hasbot in bitcointalk
if in bitcointalk trading bot popular is GUnbot, maybe you can visit gunbot announcement thread and read in there