Zaike...I checked the website and since I last looked at it they have added the comparative pictures of the circuit boards. They are certainly giving you a lot more capacitors. Interestingly the specs are about the same, eg: THD+D 0.04% at 9 watts into 4 ohms.
My take is that for $30 it's worth trying just out of curiosity, but at $160 or thereabouts there are many alternatives.
My take is that for $30 it's worth trying just out of curiosity, but at $160 or thereabouts there are many alternatives.