I have really enjoyed the zones so far, been questing in Val'sharah and Stormheim. The quests have been interesting enough, and I think the exp. amount you gain from them is pretty spot on. I have also tanked a few of the new dungeons. They have seemed nice so far, not too damage-heavy, but also not too easy. I also acquired my artifact weapon after doing a scenario, and I must say I like the looks of it. I know you can transmog it later on, but I think it looks freakin' cool already. I'm having a hard time understanding the "talent" system for the artifact weapons, but I guess I'll figure it out sooner or later.
I have also kind of started off my class hall thingy, so far the system seems pretty similar to garrisons, but the rewards are very different. I don't know what to think about it yet, since I haven't really gotten into it. It's pretty easy to collect order resources while leveling, anyway.
That's a summary of my experience so far, as I mentioned I'm only lvl 103 right now, but that will change soon enough. I'm not complaining though, I have enjoyed the leveling experience, so I don't really need to speed things up too much. There's a lot of new things going on in my life right now, so that takes up a lot of valuable gaming time. I just hope I'll get everything sorted out soon enough, so I'll have time for other games also besides WoW. See ya..!
