If you need that service there are many reputable places to find it, but we would rather you save the $3-5 per card charged by others for their opinion to get more cards graded.
And, let’s be honest, there is no guarantee that goes along with the paid evaluation, just a (hopefully informed) opinion. The grading of the card is still subjective, it adds on days to the time the card is actually sent to SGC, and no one is going to give your money back if their evaluation proves to be inaccurate.
Think of our service as what you would encounter if you dropped your cards off at a card show to be sent off for grading. You fill out the form, pay for the grading, and we do the rest.