Is MoP that bad?

So I used to play this game...A LOT. Stopped about a year ago because I am currently pursuing an engineering degree, so there is just not that much time for it. I had heard that Mop was going to be the absolute end all of WoW and was going to ruin the game, but eventually curiosity go the best of me and I am currently trying out my ten day trial period.

First off the, the game is gorgeous on my new computer, and I love the new textures and animations. Not to mention the new continent is pretty cool and I havent made it out of the first level 85 zone.

I did notice a repetitive quest scheme like the reviews say, and the "grind" of leveling. But would it make sense that going from 85 to 90 be a breeze? especially with all the new content they added? I also ran a couple of dungeons, the jade temple and brewery and noticed they had very short run times. Both finished in maybe under 30 minutes each.

I guess what Im getting at with this thread is Im wondering if this game is really as bad as the comments Ive read about say it is? I personally enjoyed my time back on with MoP, and might resubscribe when I have the funds and time. But I wouldnt mind some clarity, if any, on where all this bad wrap its getting is coming from.

Thanks