Oh, I like 3PO, especially in this film, I just have a minor problem with the writing of that one exchange. Mostly they work around R2's inability to do exposition quite nicely, which is why this scene sticks out. You can replace R2's beeps with some piece of real dialogue most of the time, which is the test of how such a scene works. Eg. on Tatooine in ANH, the closest we come to this is:

C-3PO: "This way is much easier."
R2-D2: <beeps>
C-3PO: "What makes you think there are settlements over there?"

Here, R2's line could be something like "I need to find someone," whereas with the exchange aboard the Falcon the only plausible lines are basically identical to what 3PO says. Why would 3PO repeat it? He doesn't need to translate for anyone else's benefit.

I'll find some way to rationalise it if Ady keeps it, but I felt I ought to raise the issue.