It's mostly jealousy and frustration because it is out of many people's budgets. I'm sure it sounds awesome and I would love to have it but I just am not in a position to plunk down $1000. FORTUNATELY, I am very happy with SE535. Amped with the Westone star tips (laugh if you will) I find little to nothing wrong or that I would change. Maybe a tad more sub bass...but not for a $600 premium.
Seriously...for anyone that has the SE535...buy the Westone Star tips. Immediate 20% improvement in clarity, treble and resolution which gets you, perhaps, 1/2 way in between the SE535 with foam olives and the SE846. Been around here a while and among 40 to 50 IEM buying transactions, this last one is one to remember. This SE535+amp+star tips combo is the ONLY thing that has made me put my JH5 away. TF10, UM3X, W3, W4, UE900....none surpassed the JH5 until now.