I've tried one of those (a clone of the first one), and the sound quality was absolute rubbish. Dunno about the other one.

The one I made is much, much better, because it doesn't try to do the sampling inside a cramped and noisy USB dongle, and then pack it over a USB cable.

Instead, it does the sampling at 48KHz (overkill) inside our noisy MiniITX server enclosure!