Hello, I own a medium size forum (500k messages, 15k users) in vbulletin 4.2.0 and I was considering the option of moving to xenforo. I've seen that you've a migration tool. Is it affidable or it happens that there're some bugs? Is it easy to use (I mean, no coding necessary, only click in the control panel?). In case, do you offer any paid migration service? How much? Thanks.