Have to say i would be very wary????
I have been on boards where they have open sources or ones that pay to advertise but some of them have like 2000+ replys saying they have a good service......
but as with the einstein and is it bulldog (can't remmeber) who were well respected on a number of boards and ended up ripping people off, guess u never know.
My guy isn't expensive or cheap but he is reliable and i would prefere to pay a bit more knowing what i am getting.
that is of course till i learn how to brew my own hehehe....