This is basically the equivalent of the Radial SB5 at a fraction of the price: can't compare the two soundwise since I don't own the Radial, but they share the same features.
I bought it hoping it would be good enough, and it is actually;
- Construction is pretty solid, all connectors and buttons feel tight. The attached cable is also fine, kept in place via a velcro strip glued to the metal frame.
- Sound is ok also, at least thru my home studio. No artifacts, hiss or hum. It doesn't seem to roll off any noticeable low or high frequencies, still have to test it on stage though.
For its low price I'm pretty happy. I guess the Radial has a better transformer and should have a better frequency response, but, for 30€, this is really worth trying.