I have analyzed the points raised by the Reviewers together with the replies of the Authors. Both Reviewers had recommended a set of major revisions to be implemented and the overall quality of the manuscript was found to suffer from several drawbacks. I can see that the Authors are providing elements for a truly constructive discussion and I am therefore willing to give them the opportunity to prepare a revised version of their work. If the Authors decide to undertake this route, it should also be clear that the work will then be subject to an additional round of reviews, possibly involving the reviewers who previously served on the manuscript. It is also possible that a new reviewer will be involved, to have a fresh perspective on the revised version. It should also be clear that there is no guarantee that the manuscript be finally accepted unless all major points raised are fully and convincingly addressed.

I do think that an additional round of minor revisions are required. Once these are implemented, I will then be able to formulate my assessment.

I think the Reviewers' concerns have been addressed satisfactorily and the manuscript can be accepted.