So had a bit of a look at it just now, there’s a few things I dislike about this over gfeeds.
The first being can’t seem to select any text, which is quite unusual for a program which displays text. The second being that Gfeeds has the ability to block javascript and advertising.
On the positive side I think newsflash’s display of folders is better, and and introduction re adding an RSS service and introductory/discovery pages.
People could argue though as there is no way to block adverts, or javascript from running gfeeds might be better for privacy.
Your point about gfeeds not really being maintained though is valid. I wish there was a clear winner.