Last weekend I played the Gnarlroot list 1000p I posted here before and it was amazing. I played against 2 players 500p Dok + 500p Seraphon (not the most competitive combo to play against, but still). I'm not gonna explain the whole game, but I would like to mention the most important things.
-TLA: He is much better now, you have a free Acorn, much more reliable setting up woods. Also the stomp is nuts, it made me not only resist a dok charge, but to destroy them before they could even attack. That makes me think that it's no joke to take treelords instead of kurnoth just for the stomp...
-Branchwraith: I had bad luck, and couldn't set up throne of vines neither turn 1 or 2. At turn 3 I could summon a unit of dryads and that was all his contribution for the whole game.
-Drycha: As someone mentioned before, she is indeed a beast. She was the MVP of the game, destroyed dok's unit of witch aelves shooting them with 20 attacks, then waiting for their charge+TLA stomp, and attacking them with 20 squirmlings. She also decimated a unit of 40 skinks.
-Spites: I had them in front of drycha to hold the charge from witch aelves, but it was not necessary thanks to the stomp. They did 4 wounds to the witch aelves and they were destroyed next turn. That 5+ to save makes them paper, but still not bad for those 60p. If you have stomp support they are fantastic.
-Teleport: is safer now, I used it for drycha to tp and use flitterfuries without any risk. Also to contest enemy objectives turn 4-5.
-Wyldwoods: Much worse than before, the enemy can charge freely.
-Gladewyrm: Better than expected. For 30p it is really worth it, healing TLA and dealing 1d3mw.
-Overall conclusion on new tome: Galdes help a lot on 1000p games, as you couldn't get any wargrove with the old tome. Now you can have advantages of wargroves without expending any point on them and have different playstyles. Gnarlroot seems solid for a defensive playstyle, waiting for them to come, mitigate damage with CA+stomp and spam mw with spells+endless. I think now we have more tools than before and more reliable, without the new tome I don't think I would have won the game, as all the important facts that made me win came from it.