Some detailed measurements reveal you get what you pay for. It is not a bad amp, but not particularly good, you can get many other amps for less money that also sound better.
0:00 Intro
0:36 Measurements at 1 W
1:05 Measurements at 10 W
1:31 Measurements at clipping
1:56 Square wave output
2:13 Internal build
2:40 Output protection