Sorry, Reeder is garbage...close but major fail!
They got all fancy with swiping up and down to go to the next article, or you have to use your left hand (uncomfortable), and if you try to scroll with your right thumb (as i do in safari) it almost always wants to swipe right, which goes back to the list.
Seemed like a good idea if they would get rid of the useless left/right swipe to go back and also just make the next article like iBook where you just tap the right side of the screen for next and the left for previous!!
I like the gray look, its a little easier on the eyes...but as with most RSS readers the navigation sucks...so once again I go back to Google Reader on safari, which also has crappy navigation, but is at least fast!