The third RoF anthology was ok but because the universe of the series got too crowded with so many stories and side novels beyond the main storyline which is still excellent,I was left very meh overall by it; not even the usually dependable main author's (Eric Flint) novella contribution impressed me that much - the last 10 pages were very good but a lot of the rest was truly by the numbers prose I felt the author copy/pasted from other works and changed names and a little here and there. None of the rest of the stories stood out either though they were all readable.
The first anthologies had some great stuff that fit with the novels (Wallenstein, siege of Amsterdam etc) but could not be covered at length due to space consideration, here though...
As with the side novels I feel the saturation point has been reached and there simply are not enough interesting stories to tell anymore- or maybe not enough good authors beside Mr. Flint to tell them - since now almost all the angles of the mix between the 21 century Americans and the native 17th century people - tech, social, religion, arts, media, politics, etc - have been explored and what remains is an odd new world where the story crawls at the snails pace of the main plot that only Mr. Flint develops. It is telling that after 100's of stories including the Gazette and tons of novels we are still in 1636 essentially, so all is compressed in 5 years from the 1631 beginning of the original RoF event.
I am pretty sure this new world has tons of good stories and indeed it is fascinating to see what happens, but that is essentially the main storyline of Mr. Flint and as mentioned it is very slow going compared with the huge output of the rest of the writers.
Bring new mainline novels and stories out, cherry pick several side stories and forget about the rest and I think the series would be much stronger for it.