In my opinion this is one of the best DI boxes (maybe the best) on this price range. I got it originally to convert my guitar signal into something more manageable for my audio interface and in that regard it has done it's job beautifully, absolutely no complaints.
It's bery bare-bones in design so if you're looking for some extra features, this might not be the one for you. However, for me it's beautiful in it's simplicity and for my specific purpose it required nothing more.
Any way you look at it, it's definitely not a waste of money and I have tried worse products that cost almost double this amount.