I've not participated in the epic book continuation either, as I'm a stickler for doing the books in order, and I'm currently on 2.5.5. Hope to catch up soon. Still, what I'm hearing is good. Rarely have I found an epic quest that sucked. They might have been hard, there might have been complaining, but the fact remains they're some of the most well-crafted content in the game.
There is one thing, however, that I have to comment on, negatively. The names of all the food items have been changed to include a container or amount in the name. Like "Jar of Mint Sauce" rather than just "Mint Sauce". That means that everything at the vendor is completely rearranged and the alphabetical order is no longer logical. If there are Jars of stuff, it's all together, if it's Bottles, that's together too. But it could be a Jar of Mint Sauce and a Jar of Vinegar. Those should be near the m's and the v's respectively, as before. It's almost like alphabetizing books or movies with the word "The" at the beginning all in the t's. It doesn't make sense because it's not the significant word. I can't find anything anymore at the vendors... Of course, I'll eventually relearn the order of things, but someone got a little overzealous on their modifiers this time around.
All in all a good patch. Book 8 of course fixed a lot of bugs, and the patch notes were extensive for this. I hope to see continued quality, with a little more forethought in some areas, such as the food items, or the larger issue of raid/instance design/rewards/progression.
EDIT: This is becoming a bad habit, post post editing. Anyway, Yeebo's comment reminded me that I have spent a good deal of time fishing for the summer festival deed. I tweeted that I now have the title "Sunshine" (with the requisite "Hello Sunshine" replies) which involved fishing in four different areas, a little over an hour real-time commitment. And these timed fishing excursions are repeatable, meaning you can get summer festival tokens simply by fishing. An excellent way to invigorate the fishing scene again.