Pros: Cheap, good details and clarity, detachable cable
Cons: Cheap knock-off like, painful treble, missing bottom end
Just generally good and hard to find fault with. Not really deep low bass, but enough to be pleasant. Mid-bass has good presence and there is excellent clarity and detail in mids and highs. I found soundstage to be a little congested and overall a bit of a "thin" sound. While many people have praised these, I find them a little boring to listen to. The highs do not have an audiophile-grade "zing". Clamp force a bit high at first and ear pads could be more comfortable. A little more closed than semi-open so soundstage is not that wide.
While sound is excellent I'm not a fan of knock offs and these are knock offs of AKGs and ATs. If they had their own style I would buy more Superlux products, but their entire lineup seems to "borrow" design cues from others. It's too bad, because sonically they're excellent though after some time of listening I did not enjoy the highs as much. That tells me it's easier than we think to make good sound, but coming up with a great looking headphone - that's worth paying extra for.