Congrats! If it's a genuine article you will probably be pleased. It is my second favorite earbud after Blox TM7, and it beats most of my other earbuds such as Sennheiser MX980/985, Rose Mojito, VE Zen 1 etc.
I just got a pair of Aiwa HP V99 that I'll try to recable so I have not included them. They might compete with Blox TM7 for the first place.
I've got both E282 and E484 and to my ears E252 beats both of them.
Bass is okay, mids are slightly "dry" sounding and a bit forward. Details are very good and so is the size and depth of the soundstage (medium size soundstage, not close to the huge size of Rose Mojito).
EDIT: I've got a pair of Cypherus QFred on the way and I have not yet bought or heard stuff such as TY HiZ HP650, K's 500 ohm earbud or Shozy Stardust (I'll skip Rose Masya). So I have yet to include those in my top 10...