I finally understood why the EXP bonus seems so low: because it is.
The guy put a 5x EXP bonus, instead of a 50x as he wrote on the webpage:
Also, fatigue is not unlimited: the user has 1000 weekly ftg + 800 daily ftg, if I'm not wrong. Plus, I didn't see the money bonus.
And, last but not least, auction house doesn't work properly.