For just $49 it couldn't get better. It won't change your entire world but, if you are looking for better results in your vocals without spending too much money, this is it. I have it going through my Comp16 from PreSonus, then to my Interface and it sounds great.
I also change the tube it came with because it's super cheap and cheesy. I bought a Tung-Sol ECC803S 12AX7 with Gold Pins, sounds beautiful. I would suggest buying one; I got mine from C Tech Electronics (EBay) Fast Shipping. Don't go crazy spending too much money on expensive tubes.
Great buy overall.