Re: Are Overall Skill Levels overpowered?
Yes, the consensus seems to be that they are actually not so overpowered and the more I think about it, I agree.
By the way, I'm going off the 6e Basic and Vol I books. In Basic, it says "see text for more explanation" but nothing is said in the text. That text is instead found in the full rules. However, the Vol I rules do not make it clear that Overall Levels apply only to skills the character already possesses, something which is mentioned in the Basic Rules. In addition, the table in the Basic rules has incorrect costs, so you need to consult the online errata.
So for a new player to work out the rules, you need both books, access to the errata, and a dose of good luck.