Well, I'm not remotely an audiophile so have no idea how good/terrible their DACs are.
Some suspect genetics was not aided by my fondness for power tools, loud engines and occasional concerts, to say nothing of complete lack of musical talent. Even with that though most of the really cheap DACs I saw in these things still sucked -- I don't need some laser trimmed and thermally managed affair that operates at 96K or whatever but I do want it to not sound like 16 bit era voice samples. Worse is going that basic can't really have made these things cheaper by enough to really matter.