The good: New and fresh encrypted events and quests have made azeroth a new place, the new mechanics have improved the experience in the game by enabling things like the eye of eternity (I haven't been on ulduar or nax yet), the fixed bonuses talents and gear bonuses on the different classes, specially warlocks and mages (I waited this for so long),
The bad: so many bugs, hopefully they'll be fixed on time but meanwhile we will have to deal with it, ie:
-HOR is resetting after 3-4 waves of mobs during the first boss fight
-For some reason I can't enter ToC 5 directly and using the dungeon finder throws me an error about not having a valid port location
-The dragonmaw race quests are not working properly, making impossible to obtain the skyshattered achievement
-during an ICC 10n we couldn't get the door to PP's lab opened yet we could complete all the other bosses up to sindra, the LK was unavailable due to PP being alive (this was so frustrating, really)
-Other minor things that I won't say because complaining gets boring for everyone
The Ugly:
- Not being able to make reports on the bug tracker for the time being: "For the time being only Lordaeron characters can report WOTLK bugs. That is because it was the only realm with the new core.
In the next few days Deathwing and Ragnaros will be able to report them too since they are now being upgraded to new core." - Zelta
- My grammar (the ugliest one)
As a last word the new core is a bittersweet experience, having so many new things to try is delicious, but having so many bugs is really but clenching, hopefully the staff is working hard to fix all these issues so we can enjoy the wotlk experience at it's best once again