I have used several other DI Boxes so far, but this one is the first DI Box that I personally own.
You may think that for such a price you can't expect anything special, but you would be surprised.
Of course, this is not one of the best DI boxes in the world, but surely is one of the most cost-effective.
I play in the Alternative Rock / Industrial band, and we play with a lot of background music loops, so we use Millenium DI-E for live concerts to send our loops out to the mixing console.
There are some situations where happens to appear some humming noise but fortunately there is a Ground Lift Switch. Use that switch and the noise is gone - it really works !!! :)
The sound that comes from it it's pretty clean, but Millenium DI-E maybe cuts a little bit some of the frequencies from the overall sound, but you can add those at the mixing console afterwards, so at the end the sound is very good.
This DI Box is surprisingly strong and resistant, I believe you can drive a car over it and nothing will happen to it. It seems to me that it could last for a long time, and its price is ridiculously low.