Works perfectly, no issues. Clean, has velcro on bottom. Only selling to make a little $$ in the short term, I plan on getting another similar unit at a later point. The main difference between this and the "Micro" Thumpinator, apart from size, is that this one operates either unbalanced or balanced, and can convert unbalanced to balanced, at unity gain. So it's a great DI box. And my main use for it was to balance the output of various rack preamps, to make them more ideal for driving a power amp. This application alone is a secret weapon that makes it worth the price, even before the subharmonic filtering function it is known and named for.
Let me know if questions!