If your idea of homebrewing simply involves using coffee filters than you dont know how to properly do it. You can make a very clean (read: sterile) product in your kitchen quite easily, which is why most folks who actually homebrew (and know what they are doing) trust it, save money, dont have infections, etc. Your solution is either sterile or its not. An UG lab is nothing more than a homie like any of us brewing the **** in his kitchen. Only difference is, he is selling it on a larger scale. Sorry, but its too easy to make a quality STERILE product at home to take these risks as mentioned in this thread.
The problem is, you have a lot of people who have no idea what they're doing saying they are an "UG Lab" making and selling homebrew (like this case by the OP). Considering it is as easy as it is, I dont see why they just dont do it right and offer a good product. Its just business. You offer a good quality product, people come back for more. When people come back, its more $$ in your pocket.
I've been brewing for nearly 10 years and 1000's of cc's later, no infections, no problems, ever. It IS possible to make a clean sterile product at home.