Opinions after a month

[Arethor]

Flying mounts can introduce some annoying griefing ability for world bosses such as Kazzak.
Karazhan is beautiful, huge, and designed pretty well. The upgrades are pretty minute though, and the amount of trash pulls is high.

Gruul on the other hand, needs some tweaking. We killed him last week; after you learn to spread out, the fight basically boils down to popping max consumables and beating your head against a wall until you get decent luck.

I can defintely relate to all the above. Our last Kazzak kill the only 3 deaths were 3 random horde that decided they wanted to sit on their flying mount above our raid. Granted we still took him down, but having him heal due to griefing is always going to be an annoyance.

I really like Karazhan... except... there's only really 2 pieces of gear in the entire instance that I have any interest in. Most of the loot is sidegrades to crafted gear and level 70 blues from instances or heroics. The trash can also be quite annoyingly long. Learning Shade of Aran could make anyway cry as you only get 30 min. of attempts before you have to clear about an hours worth of trash all over again. (Run backs are around 5 min. or so and wipe recovery isn't possible, so you basically get 3 or 4 solid attempts)
The bosses however are quite fun. There's a bit of variety even to make boss fights less boring. Moroes reminds me of the BRD arena fight for the Tier 0.5 quest. You get a group of bosses selected from a pool that changes week to week. You get one of 3 possible events in the opera house. Other fun fights include Nethersprite and the Chess event (although it's near impossible to lose the chess event.)

Gruul..... well... I don't know what to say other than right now it's quite ridiculous. Things can be going extremely well and then a random toss on Ground Slam can completely ruin the run and cause a wipe. Our best so far is 22% so hopefully this week he's going down. It's bad enough that you have to use every consumable imaginable (the original reason for my Raiding Consumables post research) but to have to waste those pots on multiple runs because of luck just seems a bit unrefined. Granted there are ways to minimize a chance for something bad to happen, but there's still always that chance there.

In terms of leveling, I think it's quite easy and fun. A nice breath of fresh air. I've leveled my warlock to 70, my warrior to 67 and my pally to 64. The best part is because there are so many new quests you can actually end up hitting 70 without completing a large portion of them, allowing you to make money for your mount and give you other things to do instead of just constant instance grinding once you hit 70. It also allows you to do quests on alts that you may not have even done on your main character.