I played through the story and now I'll get my Druid to Level 100. After that I'll star a new class. I guess I'm playing this for a few 100 hours.

Skipped all the story sequences, because it's so addicting that you just wanna keep going. How good the gameplay loop is really depends on the class you chose. If you get bored, maybe try another one.
Game looks and plays great but...

...what I really dislike about the game tho is that online is always required and there are micro stutters on every graphics setting. I don't know if it has anything to do with it being online all the time, but it definitely took away from the experience a little.
Also, this was a 70€ game and they are selling cosmetic skins for 25+€. 1 single skin! I don't have anything against a game that is getting supported for years and therefore they're trying to generate profits with some cosmetics.
I would support the devs and buy something, but I'm not spending 25+€ on 1 skin! I'd gladly give them 100€ over time when I put hundred of hours into this, but I'm not spending that amount on only 3 skins. Make them 5-10€ and I'll buy 10.

8/10. I'm taking away 2 points for always online (and the micro stutters) and gross business tactics when it comes to MTX.