suits me
I'm fine with whatever was just said or suggested. Said as a set response. A: "Do you mind if we stop by the bank on the way home?" B: "Sure, suits me." A: "I was thinking of a cherry-red color for the outside of the house." B: "Yeah, suits me fine."
(It) suits me (fine).
It is fine with me. John: Is this one okay? Mary: Suits me. John: I'd like to sit up front where I can hear better. Mary: Suits me fine.