It's gonna have a monthly fee. Yoshi-P has said he is open to the idea of making it free to play but that won't happen for the foreseeable future.
As for being good i'm 90% sure it's gonna be a great MMO. The question is if SE can convince those who were burned by the original version. But based on all the game play videos they have been putting out the game looks incredible. It's incredibly polished(even tho it's not done) there looks to be a crap ton of content and everything looks so intuitive.
It's still gonna depend on if the game is your taste(as with any MMO or game in general) but it won't be the mess that the original version was.
i hope this game is good and doesn't have a monthly fee x3
A monthly fee for a MMO that crashed & burned before it even released wants to keep the monthly fee. I'd rather keep my money.