Well, these are up again on here, and I can say that the Bass is smooth and hits hard. The bass goes very deep, but doesn't distort (if it does, thats going to be your amp's fault, or you're going so high that your ears will get damaged permanently). The highs may seem less detailed, but you will never find a set of headphones or IEMs that have the best highs WITH the best lows. Even if you took, lets say a hybrid IEM with the best balanced armatures and the best dynamic drivers, and the DD's are tuned for lows, some BA are tuned for mids, and some for highs... and lets say these are the best of the best, most technologically advanced pieces... you'll never be able to fully hear the highs because the bass is mixed in with the highs, unless the song doesn't have bass at that time. It's just how hearing works. Imagine you are in a room with a crazy surround sound system, thousands of dollars worth... With the sub/subs going on you'll miss details in the background, because your ears will hear/feel the bass which will make it harder to hear some mids and highs.
The secret gardens are amazing, because for me, the bass is phenomenal. I think most of the people that dislike these just do not enjoy luscious bass as much as I do... like deep, thunderous bass... while still having good mids and highs. I do not think these produce as good of highs and mids as the King pros, but I do not think they are that much worse. Just a tiny bit.
If you like EDM, or rap or R&B, these are great. They also are super easy to drive, from my iDSD Black label to my Samsung Note 8... they get loud and sound good.