Taking into account the reviews, rebuttal and the discussion, I think the paper is of interest to the community and I believe the empirical results are significant. However, I *urge* the authors to consider all the feedback given, and incorporate the points made in the rebuttal into the main paper. It is crucial for it to have the impact it deserves in the community. Ignoring it will minimize the impact the paper will have. So please take this chance and make sure the camera ready paper is as strong as it can be.