I finally got around to reading this last night and I thought it was terrific. I love the retro look and feel of the packaging and, for the most part, the artwork and the stories.
My favorites were The Flash (but Iris knew he was the Flash at this point, no?), Supergirl and Metal Men. Least liked Teen Titans (did not like anything there ), Adam Strange (liked the over the top dialog, not the artwork) and Wonder Woman (the artwork seemed very "Disney" to me -- maybe it's those eyes on Diana).
The one thing I did not like was the price. I think if DC was really smart they should have diverted some of their marketing dollars from the "After Watchman" promotion to support a reduced price. Selling this at $2.99 or, more aggressively $2.50, would do more to get new folks into LCS especially in combination with the huge amount of PR they are doing on this. They could have tied into ongoing books and the "Johnny DC" line and picked up new readers. But then maybe they are just betting that there are enough suckers like me that will shell out $3.99 a week for this.