I've been using Feedly for the last couple of weeks now. Their software works, it syncs with the Reader API on the backed so all the front ends are in sync, including Google Reader. The plan seems to be to create their own Reader API compatible backend and move over to it before summer.
Their apps work OK but really seem to prefer a magazine style layout over the simple list layout and don't at the moment seem to have space keyed to advancing to the next article or back/forward UI widgets in list view, maybe there are keybindings but I haven't found them yet.