I have played and enjoyed immensely Guild Wars 1 and 2, Eve Online, Astro Empires, and World of Wacraft (first expansion).
I have played and disliked: other Warcraft expansions, Age of Conan, Aion, The Old Republic.
Would I like this MMO?
Honestly, I'd say the only way to find out is to give it a try... they have a free trial available and I'd highly recommend giving it a go!
As for the MMO's you've mentioned, I used to play WoW quite a bit but stopped after Wrath of the Lich King, after that is when I started getting bored with it lol... I REALLY enjoyed the first Guild Wars, I spent so much time on it back in the day, loved farming hydras for dyes and making tons of money too lol, also loved the expansions too! Wasn't a fan of Guild Wars 2 though, bought it day one and after trying to like it for a good 2-3 months, it never gripped me, I took a break (About a year) and went back, but the same thing again, I managed to grind to max level through the world PvP thing, but it just wasn't fun for me whatsoever.
The rest I've either not played or not played enough to give a proper impression.