Yeah I had 2 HIS 4890's in my desktop a while back, they were nice. Now, I have a single XFX 6970 in here, amazing, and it came with a do not disturb sign, so thats always nice.
Thing is XFX just sells the base models with their sticker (minus the ocasional Black Editions), something I can't stand since reference cards almost always look ugly, have worse temps and worse performance when compared to a fully custom graphics from the likes of MSI, ASUS or Gigabyte, with their custom coolers, PCBs etc...basically companies who take a reference card and the only thing reference afterwards is the GPU itself. Sure they cost extra but for it's a no brainer when to comes to reference or custom graphics cards
As for HIS although they do indeed make custom products I still dislike their performance numbers and looks. Example, the http://www.infohw.com/wp-content/uploads/2011/02/HIS-HD6870-IceQ-X-Turbo-X.jpg vs the http://www.gamexeon.com/forum/imagehosting/201102/243734d53c17ea4210.jpg.