I have build up a natural aversion to "free" games.
This is purely bias since i havent played Blade and Soul yet, but the overal quality is usually lacking in some way. Especially with PVP elements included. It's usually something like people who purchase ingame items having a major advantage over people who do not (but ok, that's semi-fair), or basicly the game not being playable beyond the basic elements and the rest being locked behind payment walls. Or an incredible grind fest on top of that too where progress is super slow. And in general, i find the playerbases to be full of young (rude) immature people who cant bring up the costs of a monthly fee. Even worse if there's PVP involved (Archeage comes to mind as having all of that... but Tera and Aion are guilty of this too)
Honestly, the only game i have ever played that's Free while offering the exact same quality as people who pay for things is Phantasy Star Online 2. The only thing that people who pay for it have over people who do not is the ability to vendor things to other players (which is completely unneeded as Meseta gathers up pretty quick regardless and you can buy 99% of all the items off the marketboards from other players regardless). It's still a grind fest however.
Will i try it? Yes, may as well.
Am i going to enjoy it. Probably not for more than a week...
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[XI] Surivere of Valefor
[XIV] Sir Surian Bedivere of Behemoth
http://na.finalfantasyxiv.com/lodestone/character/2401553/