If you are using mac, try reeder(http://reederapp.com/mac/). It syncs with a lot of online rss readers (I use feedly and instapaper). But where it shines is its UX. It does what you need without any fluff and does it elegantly. All essential parts are there without showing million buttons. Keyboard shortcuts also work perfectly. It is the only app that I didn't feel any need to change settings after the first time.
I was using Reeder back when Google Reader was killed, and it was super easy for me to switch to Feedly as the back end — just export the subscriptions and import them into Feedly. Just like I didn't use Google Reader in the browser, I don't ever use Feedly in the browser, either.
It's a beautiful little app. Great native app on iOS, too.
