So for people who signed up for the beta, Digg Reader has been released as a desktop web only version (which that link will let you sign up for the beta), which will import your Google Reader feeds directly from Google Reader (while it is still up). I was able to try it out today and it is fast, and it imports your feeds very quickly, though doesn’t seem to care what order you have imported them in, and they are certainly not alphabetical, so you will have to re-order your feeds to use them.
It has a clean interface, but not many options. You can digg posts, save them for later and share them with Facebook and Twitter and that is it. And they have not updated the mobile app yet, so you can only use it on your desktop computer via a web browser.
Like other alternatives it has no search function as of yet.
It is a decent enough free RSS reader, though not all that impressive as of yet.