Since the bot is automated, I don't need to monitor it. It handles everything. And if you say there's a large fee, I don't need to invest in miners first even before earning any money. So who's risk is higher?
Did they mention which exchange the bot work on? Their website looks like some of the get rich quick scheme to lure people in, making empty promise to people who has little to no knowledge how the whole system work.
Mining is no longer a business that give positive return on investment. Most people who pre-order BFL and Avalon lost a great deal of money. And it looks like all the upcoming Asic companies can not offer mining machine at reasonable price (positive ROI).
Here's one of their FAQ answer that might answer your question:
QUESTION: If I deposit USD only, will the robot trade only USD?
No, our BTC robot will spread the funds between your USD and Bitcoin accounts to trade them. If you wish to withdraw ALL in USD only, then you can sell your Bitcoins on BTC-e itself and then withdraw in USD (by many withdrawal methods, including Paypal) or you can withdraw bitcoin separately
Basically I open an account with btc-e.com and fund that account. And inside the bot you'll need to connect the bot with btc-e.com's API to make the trades.
In my opinion, I guess nowadays most websites trying to sell anything online even if they are genuine or scams will look somewhat hypey.
Like in the earlier reply, I said I just wanted to try it out since they provide a 60 days money back guarantee. So why not.