I've had good experiences with mentor interactions on the clojure track so far, but no-one's always right on everything, and if you put any 2 expert developers within hailing range of each other you'll hear at least 3 opinions. Even if you end up disagreeing with a mentor on a suggested change, you can learn something merely by the bare fact of the suggestion, and more by implementing it. It's the same as in-person mentoring really.

^ Spot on!