Abused the 3 o'clock power hour the first night to get into the molten front a day early, having now explored that place thoroughly, done achieves, etc. Yeah the first 'section' of the quest line is balls, but the area itself is pretty dang cool, the achievements are fun, the quests can be neat, there's like floating mario platformer rocks that explode for you to jump accross, etc. It just takes too long to unlock more thna a few dailies (150 marks after the first 20, and after two power hour sessions I only have 43).
Firelands was fun, people whined about the trash enough that it got doubled in respawn, so meh. I liked the trash tbh, farming it for rep/drops is boring as dirt, but the pulls are interesting, extremely varied, and you can skip a huge majority of it.
Rep stops at 1 shy of honored for whoever asks, but giants and other 'special' trash (there's a lot that qualifies as that, but not at the zone in mostly) continues past. Sitting at about 3700 into honored now.