a legit guy. he wont scam you or anything like that. I gave him payment, and he gave me the guide as soon as he recieved payment. Also, if your not satisfied with one of his guides, he'll give u another one to make you satisfied. A legit dude to deal with.
Vouch for Vendo de Tudo!, he went first and sold me the guide, it looks good, but I haven't tested it yet. And I still have to look through the calculations.