You are right with that a whole day onsite interview is more time consuming.But personally, I think I can do better in a face-to-face evaluation than on a codin

You are right with that a whole day onsite interview is more time consuming.But personally, I think I can do better in a face-to-face evaluation than on a coding challenge where I have to guess the test cases from some vague description. In fact, face-to-face can show the interviewer how I think and what kind of questions I ask to figure out the way to solve an issue. Maybe it is my lack of interview experience, since I only had like 3 or 4 so far, but I only 1 out of them left me with a good experience after the coding challenge (even if I did not get an offer yet).