So, surprisingly, to me at least, I don't hate Blinkfeed. I actually kind of like it and find myself using it a lot.
That said, it is REALLY annoying that Blinkfeed doesn't show up as an "app" in the task switcher. The practical effect of this is that if I'm reading an article on blinkfeed, then I get a text message or something and switch to that, I can't switch back to where I was in the article. I have to hit home, swipe over to blinkfeed, and click on the article again.
That's really my only gripe at this point. I know it's more of a sense 5 thing, but since I'm pretty sure this is the only phone out with Sense 5 at the moment...