I returned this because it sounds bad with rock or metal distortion. It's boxy-sounding, with lots of lower mids, and buzzing highs. And no, it's not just because it's an 8" speaker — I have an 8" Peavey combo for quiet playing, and it sounds much better.
It's just the speaker's voicing is not for my use. I imagine this sound may be great for clean or light breakup amps, like the small Vox MV amps, but I wouldn't know.
Build quality is great, it's light and easy to transport, and it's pretty amazing that it has parallel jacks on the back. Clearly, thought was put into this unit, it's just not for me (and not for you if you think you can play high-gain stuff through it).