Can indeed confirm that this bot has had a few nice updates. - I'm impressed. Quality of the bot is good, I'd say i've invested roughly 100 gold and went to 500 in a good week. Depends on the orders you put up naturally, I like to be in control and use the "set buy orders" function sparingly. It seems to pick out flippable items well when I do use it - even a rookie trader could easily double their gold.
A tip from me is to create a second GW2 account, keep a low profile on it for a bit, then dual box it or run it in a virtual machine while you dick around on your main. 100gold being worth roughly 8 dollars will have the cost of the second account earnt back swiftly, and all the extra storage, mailing to yourself and the peace of mind that your main account is immune from being caught selling gold is worth it