Rated 3 out of 5 stars
I hate when this reader automatically deletes my unread items. For example, I have 100 unread items and decide to update feed - then my previous items particularly replaced by new items! This reader is very independent, but for me it's impossible to delete, update without deleting, save my unread and read items for long time etc!This review is for a previous version of the add-on (1.2.1-signed). This user has a previous review of this add-on.
About deleting and saving items it has already been discussed several times.
You know that it will be added in a future version.
If you hate this reader behavior why don't you use another one ?
It seems like Google reader will meet your needs.